助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   斗 的翻译结果: 查询用时:1.036秒
图标索引 在分类学科中查询
所有学科
机械工业
矿业工程
农业工程
建筑科学与工程
中国文学
旅游
更多类别查询

图标索引 历史查询
 

相关语句
  bucket
     Develop the TDTG 50/24.5 Bucket Elevator
     TDTG50/24.5式提升机的研制
短句来源
     Development of ZG30CrMn2Si2Mo Casting Steel Bucket Tooth
     ZG30CrMn2Si2Mo铸钢齿的研制
短句来源
     Research & Manufacture of TDTG 100/33×2 Bucket Elevators
     TDTG100/33×2提机的研制
短句来源
     CO_2 welding for repairing bucket spindle
     堆取料机轮轴的CO_2焊接修复
短句来源
     Analysis of L Girder Cracking Reason of 3000/1800 t/h Bucket Wheel Reclaimer/Slacker
     3600/1800 t/h型轮堆取料机L梁开裂原因分析
短句来源
更多       
  dou
     On Li Dou's Creation in Traditional Operas and Its Theory
     李戏曲创作与理论
短句来源
     Novel Indition Study of Yuxiang Dou
     余象小说创作研究
短句来源
     Conventional Use of Paper Dou and Wicker Basket in East of Shandong
     胶东纸和笸箩的民俗应用
短句来源
     A summary is made to the developing history of ancient chinese ceramics from technological point of view ,such as "tang san cai"ware,"blue and white"ware,"gu cai"and "fen cai",and "dou cai".
     从工艺制作角度总结中国近万年陶瓷史 ,分别以唐三彩陶瓷、元代青花瓷古彩、粉彩陶瓷装饰以及彩等作为代表进行分析鉴赏。
短句来源
     and Yao dou is the most important nourishment for life.
     “”是生命最重要的滋养物;
短句来源
更多       
  buckets
     Experiments have been carried out to investigate discharge process of 6 different materials from 6 different types of buckets.
     本文介绍用6种型对6种不同物料进行卸料过程实测情况。
短句来源
     The function of implementing one scale with multiple pans (buckets) by using an A/D converter is emphasised.
     重点讨论了如何采用一个A/D转换器实现一秤多盘()的功能。
短句来源
     Through analysis of the causes of the spillage from dredger buckets when feeding the receiving hopper, it is indicated that the spillage losses could be reduced to the minimum taking such measures as changing the bucket opening form, adjusting the pressure and flowrate of flushing water during ore discharging, shortening the relative distance between the bucket chain and receiving hopper, etc.
     通过对采金船挖给受矿漏供矿时漏矿原因的分析认为:采取改变挖开口形状、调节卸矿时的冲洗水压和水量、缩短链与受矿漏间的相对距离等措施,可把漏矿损失减少到最低程度。
短句来源
     Based on the analysis of the causes of bucket falling,some relevant improving measures were put forward such as increasing the reliability and service life of the parts of buckets,improving the structure design of buckets. Through the implementation of these measures,the probability of bucket falling has been reduced from 19% to1.8%.
     在对掉原因进行分析的基础上,提出了相应的改进措施,提高了矿零部件的可靠性和使用寿命,改善了矿的结构设计,实施后掉率由19%降至1.8%。
短句来源
     Based on experimental reults, it is indicated that the tracking precision of buckets has been significantly improved.
     以一台小型液压挖掘机为实验对象,实验结果表明该方法可以有效地提高齿尖轨迹的跟踪精度.
短句来源
  “斗”译为未确定词的双语例句
     Classification and Systematics of the Aquilegiinae Tamura
     毛茛科耧菜亚族(Aquilegiinae Tamura)的系统学研究
短句来源
     Experimental research on carbon cone energy meter
     炭能量计的实验研究
短句来源
     Rock Mechanics Tasks for Sandouping Damsite of the Three Gorge Project
     三峡工程三坪坝址的岩石力学问题
短句来源
     ZF Type Hopper Rolling with Self-Returning
     ZF型自返滚的研究
短句来源
     The Measurement Analysis for Boom Stress Of Hydraulis Excavator
     单液压挖掘机动臂应力测试分析
短句来源
更多       
查询“斗”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  bucket
This class of algorithms includes local decomposition algorithms for discrete optimization problems, nonserial dynamic programming algorithms, bucket elimination algorithms, and tree decomposition algorithms.
      
Global and regional climatology averaged over the last 25 years of 100 year integrations from the IAP GCM with and without IAP94 ("bucket" scheme) is compared.
      
This paper investigates the hydrological interactions in the atmosphere-evegetation-soil system by using the bucket model and several new simplified intermediately complex models.
      
Performance analysis of leaky bucket algorithm with bursty traffic input in ATM networks
      
The performance of leady bucket algorithm with bursty traffic input is analyzed.
      
更多          
  dou
5) The behavior of Dou-Gong and Joggle joint of Chinese ancient wooden structure.
      
Increase of Curie temperature in fixed ionic radius Ba$_\mathsf{1 + x}$Sr $_\mathsf{1-3x}$La$_\mathsf{2x}$FeMoO$_\mathsf{6}$ dou
      
Due to the Sc characteristics mentioned above, the genus Liaocossus Ren, Yin and Dou, 1998 can be well distinguished from "Ilerdocosus-complex".
      
In this paper, the incipient separation is first predicted with Dou and Deng (1992)'s theory and then compared with Lu and Settles' (1990) experimental data.
      
Seasonal, annual, and treatment-induced variation in available nitrogen pools and nitrogen-cycling processes in soils of two Dou
      
更多          
  buckets
Thermal Nondestructive Testing of Thermal-Barrier Coatings of Turbine Buckets
      
The thermal inspection of thermal-barrier coatings of turbine buckets is briefly reviewed.
      
When implemented in practice, the device will allow the rate of erosion damages to the last-stage buckets to be reduced considerably.
      
Several leaky buckets with different sizes are discussed too.
      
The middle bucket, among the buckets which are in contact with the raw material pile, is treated as the end-effector of a reclaimer.
      
更多          


The "Compound Mixture of Two Fairies" has been used clinically for treatment of hypertension. It is composed of Curculigo ensifolio, Epimedium, sp., Morinda officinalis, Phellodendron chinense, Anemarrhena asphodeloides, and Angelica sinensis. In normal dogs, intragastric administrations of 6g (crude drugs) per kg t.i.d, for 20 days produced no toxic reactions: If the dosage was increased 3—4 times, emesis and diarrhea occurred, probably due to alimentary disorder from the bulk of the decoction. When the Compound...

The "Compound Mixture of Two Fairies" has been used clinically for treatment of hypertension. It is composed of Curculigo ensifolio, Epimedium, sp., Morinda officinalis, Phellodendron chinense, Anemarrhena asphodeloides, and Angelica sinensis. In normal dogs, intragastric administrations of 6g (crude drugs) per kg t.i.d, for 20 days produced no toxic reactions: If the dosage was increased 3—4 times, emesis and diarrhea occurred, probably due to alimentary disorder from the bulk of the decoction. When the Compound Mixture was introduced 6. g/kg into the lumen of duodenum in anesthetized cats, the blood pressure began to descend at 30 minutes, and lowered an average of 30% below the original level in 2 hours. Four Goldblatt renal hypertensive dogs were given the Compound Mixture by stomach tube. The dose for the first 10 days Was 9 g/kg/day, and doubled for the next, 10 days. The post-medication observation period was another 10 days. Blood pressure was measured daily by auscultation on the carotid loop. The average reduction of the diastolic pressure in the space of 30 days was 10 mm Hg (8%), and that for the lowest 5 days running was 16 mm Hg (12%). A therapeutic action (a reduction of at least 11 mm Hg diastolic) was demonstrated in 3 dogs. Among them 2 dogs received a second course of treatment which appeared to be equally efficacious. Intraperitoneal injections of the Compound Mixture 6 g/kg to anesthetized dogs resulted in a decrease of cardiac output during the hypotension, while the dilatation of peripheral vessels was insignificant. Comparative experiments on the 6 ingredients revealed that the hypotensive action of "Compound Mixture of Two Fairies" could be primarily attributed to Phellodendron chinense and Epimedium sp., whereas Curculigo ensifolio alone had little effect. Eight hypertensive dogs were fed daily the Compound Mixture or a mixture of 6 decoctions of the components. Analysis of variance disclosed that the hypotensive potency of the former was no better than the latter. Hypertensive dogs were fed the Compound Mixture which was devoid of Morinda officinalis, and the therapeutic potency was shown to be no less than that of "Compound Mixture of Two Fairies". Hence, we deem that Morinda officinalis is dispensable.

复方“二仙合剂”由仙茅、淫羊藿、巴戟天、黃蘗、知母及当归組成,所用药液均为水煎剂。正常狗每日灌胃給二仙合剂18克/公斤,連服20天,无毒性反应。增加剂量3—4倍,則有嘔吐泄泻,可能由于药液容量过大,影响消化道的机能。麻醉猫十二指腸注射二仙合剂6克/公斤,30分钟后血压开始下降,2小时后平均降低原水平的30%。慢性腎型高血压狗只,每日灌胃給二仙合剂2次,第1—10天剂量为9克/公斤/天,第11—20天剂量为18克/公斤/天,停药10天。舒张压“30天平均降压值”平均为10毫米汞柱(8%),“最低5天降压值”平均为16毫米汞柱(12%)。4狗中3狗呈現疗效(舒张压下降11毫米汞柱或以上),其中2狗重复一次試驗依然降压有效。麻醉狗腹腔注射二仙合剂6克/公斤,在急性降压时有心脏指数的减少,而外周血管的扩张并不明显。单味药的比較試驗証明黃蘗和淫羊藿为二仙合剂降压作用的主要有效成分,而仙茅几无降压效能。高血压狗8只,每天服二仙合剂或分煎合剂,变异数分析証明分煎合剂的降压效果不亚于二仙合剂。高血压狗灌胃試驗二仙減巴合剂,降压效果并不較二仙合剂为弱,所以我們建議复方二仙合剂中可減省巴戟天。

This special issue is on the request of the Yunnan provincial government to fullfill a new Plan in the following years to establish series of Nature Conservation Stations throughout this province. As the Socialism construction in our country is so fast, especially the influence of the great-leap forward of 1958, that stimulate everything to meet the modernization of new China. Plans for the establishment of Naturc Conservation Station in Yunnan is also one of the new things omorged in that year. There are five...

This special issue is on the request of the Yunnan provincial government to fullfill a new Plan in the following years to establish series of Nature Conservation Stations throughout this province. As the Socialism construction in our country is so fast, especially the influence of the great-leap forward of 1958, that stimulate everything to meet the modernization of new China. Plans for the establishment of Naturc Conservation Station in Yunnan is also one of the new things omorged in that year. There are five main articles containing in this volumc, they are, first one, the Ta-Mon-Lung Nature Conservation Station, second one the Mong-Run-Station; third the Mon-La Station; fourth, the Mon-Yang-Station; and finally the Ching-Tung, Wu-Liang-Shan Nature Conservation Station. All of the five stations are situated along the east and west banks of the Lan-Tzeong-Kiang river, and lie between 21°-25°latitude north. The first four Stations lie within Si-Shion-Ban-Na district, which is the southernmost part of the Yunnan province, on the latitude 21°-22°30′ north longitude 99°55′-101°45′ east. In general the altitude of this district is 540-1000 moters above the sea level, except a few mountain peaks reach 1800 meters high. The total area is estimated to be 25,000 square km. and with Lan-Tzeong-Kiang lows all throngh the entire territory from the north west to the south east. It is one of the richest and most lovable tropical and subtropial regions in China. Clinatically, it is a hot and humid place, without seasenal changes in the year, but having very distinct rain and dry seasons, or a fog eason in adlition. Yearly priptation is 1000—1800 mm. Yearly average temperature is above 18℃. Ching—Tung Station has the same type of limate as that of Si-Shion-Ban-Na. Geographically the mountain range and river course are running in the direction from north west to south east, throughout this whole district and topographically there are flat mountain tops, steep-walled slopes, astal lands, and inter-mountain basins, provided with rich vegetation type. The live nature conservation stations in this special issue have each mphasized on different topics. Such as Ta-Mon-Lung Station sticks to the dry type of sasonal rain forest, Mon-Rung Station has emphasized on the description of the castal type of rain forest, Mon-La Station descries the wet type of seasonal rain forest, Mon-Yang Station is on the south subtropic, montane type rain forest. On the other hand Ching-Tung Wu-Liong Shan is on the vertical distribution of vegetation. Ta-Mon-Lung Nature Conservation station is the one located on the west bank of the Lan-Tzeong-Kiang river on the border of Burma, about 50 Kilometers south of Yun-Ching-Hwung, the capital of the Tai peoples autonomous district, It is a large inter mountain river basin, about 600 meters above the sea level, the entire area of the basin is estimated 38 kilomtrs in length end only 2-3 kilometers in width. It is surounded by middle sized mountains, The seat of the Station is on the north side of the basin, from the ground level up to the mountains slopes, with the Hsiao-Ke-Ho river as its east border & Men-Chuon village on the west side. The mine vegtation type within the statin is the "Lung-Shan" forest of the Men-Yong-Kwang and Men-Leon-Suan of the Tai villages. In the classification of plant, communities this type of vegetation has been called the dry type of the seasonal rain forest. The first story trees of this type ofcommunity are Antiaris toxicaria and Gironniera subaequalis and many others, forming, very complex structures. On the base of the different local habitat of this plant community, it may be subdivided into: 1. community type on low terraces and lowslopes, 2. community type on eroded hill tops, 3. community type on slopes of mountain ravinas. Besides are monsoon type of forest communities and the evergreen oak forest communities on higher elevations above 800 m. in altitude, Between 700—800 m. in altitude above, the sea level is usuay a transtional zone with the tropical rain forest type below and the subtropical oak forest type above. Secondary vegetation types are various. There are young forest and shruby lianae combinations, vast areas of bmboo (Dendromus strictus) community, the Eupatorium odorum community, the different kinds of grass communities, and other aquatic types of communities. The Mon-Rung Nature Conservation Station is the second one to be mentioned in this specie. issue. It is located on latitude 21°41′ north and longitude 101°25′ east, to the east side of the Lan-Tzcong-Kiang River. The basin of Mon Rung is 540 m. above the sea level in altitude, with Loo-Soo-Kiang river flowng through its entire territory, and it is about the middle way of the Shiao-La-Highway. This nature conservatisn station is divided into two parts. The first part, situated near the highway, has sand shale rocks in nature. In mountain, ravines and low hills, vegetations are of the wet type of seasonal rain forest. It is also redivided into 3 eubtypes: 1. in narrow ravincs and on foot of slopes with the Pometia tomentosa as its dominant species in the first story; 2. in now ravin and on flat plas, with the Terminalia myriocarpa as its dominant species in its first story; 3. in narrow ravines and swampy places, with the Erythriua lithosperma as its dominant species in the first storg. Other types are the transitional ones of the south subtropial rain orest and the dry type of the south subtropical rain forest distributed on the higher part of the mountain slope, forming the vertical distribution of plant communities in this region. The second part of the nature conservation of Mon-Rung Station is a lime stone type, located on the upper part of the Loo-Soo-Kiang river, its baslc rock is made of permian lime stone. This type of seasonal raiu forest community has loosely spaced diciduous tall trees in the first story and very characteristic evergreen rain forest in the lower stories. and has poor undergrowth of the forest floor. It may be redivided into two other subtypes: 1 in narrow ravines with the Mallotus pseudoverticellata as the main dominant spocies in the second story of this tnpe of community. It has been found that the line stonetype of community is rich in species, and many new spocies, even new genera and new records are continuously discovered in recent years, some families have been reported to be new distributions in Chiua. The Mon-La Nature Conservation Station is on the east bank of the ran-Tzcong-Kiang River, the southern-most one among the five stations. It is located on th lower course of the Nan-La-Ho River, 640 m. above the sea level in altitude. All the natural forest land, on the low hills and terraces are included in this station. The main types of vegetation within this station in the wet type of the seasonal rain forest in which, Pometia tomentosa and Manglietia sp. are dominant spcies. This is in turn redivided into subtypes: 1. narrow ravine foot slope type of wet seasonal rain forest; 2. narrow ravine flat place type of wet seasonal rain forest; 3. narrow ravine swampy type of wet seasonal rain forest; 4. the Manglietia community type etc. Another type of vegetation within this territory is the sonth subtropical transitional rain forest which contains Alstonea pachycarpa and sovery species or Castanopsis as the first story trees, the under stories are rich in rain forest elements. On range tops of the lower mountains are commonly south subtropial dry ever-green oak forest, containing many species of the gencra Pasania and Castanopsis as dominant ones. The Mon-Yang Nature Conservation Station, is another one located on the east bank of the Lan-Tzcong-Kiang River, at 23°6~1-23°24~1 north latitudc, 100°-101° longitude east. The total area is estimated to bo 180 square kilometers, It is bordered on the west by Lan-Tzeong-Kiang River, on the east by thy Kun-Loo-Highway, on the south by the upper mountain ranges of the Mon-Yang-Ho River, and on the north by Mon-Men village. The highest mountain peak within this area reaches 1800 m. above the sea level, but most of the mountain ranges are below 1500 m. A so-called the south subtropial montane rain forest is. occurcd on back mountain slopes of the Kun-Men village distributed at 1200—1500 m. above the sea level. The main componints of this kind of forest community are the Calophyllum thorelii. Semecarpus albesccns. Vitex quinata, Reevesia siaminsis, and Dysoxylum haanensis etc. This knd of rain forest has occured comparatively on hghcr altitude in this place is a phenomeno quit different from other types of rain forest. The next eategory of vegetation is the tropical dry seasonal rain forest, distributel along terraces of stream sides about 720 m. above the sea level. It is a luxuriant rain forest rich in tropical species. The most conspicuous ones are: Pometia tomentosa, Daubanga grandiflora, Lagerstroemia intermidea, Cryptocarya caesia and Hrpultia cupanoides etc. The most common type of vegetation occupying most of the areas in the south subtropical region in the evergreen oak lorest. Common trees of this community are the species of the genera: Castanopsis, Pasania, Cyclobalanopsis, and Annaslea fragrans, Schima Wallichii etc. Among. the secondary vegetations, Dendrocalamus strietus is one of the most prominent type occupying vast areas. There are also vast areas of grass communitis, containing tall grasses like Themda giganta, Thysanolaena maxima, Neyrandia arundinacea, Microstegium vagans and mddle grasses: Imperatus eylindrica and Arundinella hirta etc; they togcther form different kinds of pure and mixed communities. The fifth and the last nature conservation station is the Ching-Tung, Wu-Lion-Shan Station. It is located at 24°29′3″ latitude north, 101°4′5″ longitude east. The highest mountain peak within this area is 3200 m. above the sea leval. It is a large mountain with the total area of the station estimated (to be) 180 square kilometers, stepwalled slopes and narrow deep anyans, with distinct vertical vegetational distributions. River bed and basins in Lan-Tzeong-Kiang, Pa-Pien-Kiang and Chuan-Ho are pro vided with the pine and oak forest community, dorainanted by Pinus yunnanensis, and Quercus alicna, Q. acutissima, Q. variabilis. Others like Kcteleeria evulyniana, Annaslea ragrans Myrica esculata, Rhododendron Delavayi are also not uncommon. Isolato large trees in this areas are Gossampinus malabaricus, Mallotus phillipinensis, Wendlandia paniculata etc. Secondty, there are the evergreen oak forest type and the subtropical rain forest, mainly occupy in the mountain ravines and valleys. It is one of the largest plant communitis within this station, estimated to had 5045 hectare in area. It contains different community types as follows: 1. Castanopsis hystrix-Cyphotha montana community. 2. Siima waihii+Illicium yunnannsis-Shinatala chinensis+Indoclamus pedolis community. 3. Manglietia forrosti+Acer pictum-Justicia petentiira commity. 4. Anus npalensis+Hartia yunnanenis Shinatala chinensi+Cyphtha montana community. 5. Hyna trijaga-Cyathea spinulosa community. Third one is hemlock forest distributed on the upper part of the mauntain about 2400-2800 m. above the sea level It is subdivided into hemlock pure forest and Tsuga-Rhoodendron communities. Tsuga yunnannsis is the. dominant species, othrs like Tsnga chinensis and Tsuga forrestii and many spies of Rhodendron are also there. The coniferous epiphytic moss forest type is a spial featrue among the plant communities. Mountain top moss Rhododendron forest and shrubs, are distributed at 2800-3100 m. above the sa level. The layer of moss is as thick as 10-20 cm. and completlely covering the tree surface especially the tree trunks. Moss Rhodldcndron shruby community are dominated by many spies of Rhodedendrom, Lyonia, Enkianths, Picris, Eurya and Vaccininm etc. Secondary vegetion are of varions forms, such as grassland, with Arundinella and Pteridium aquinum as dominant species; shruby comunitics with Cletyra delavayi, Gaultheria forrstii as common species; Alnus nepalensis and Jugans eathayonis are rather two pure forest stands. A small pond is formed t 2600 m. above the sea level, densely vegstated by Scirpus macronata, Eleocharis palustris, carex dispalata and other species of the families Cyperaceae and ca. Finally a dingram for the vertieal distribution of types of plant communities of the Wu-Lion-Shan mountain has been prepared to show the differences between the oast and west slopes. In this special issu the authors wish to amphasize their point of view in the science of vegetation as follows: (A) An attcpt to bring out a preliminary syem of classifieation of the tropical plant communities Ⅰ. Seasonal rain forest type-A cmbination of the nature of tropical rain forest and monsoon forest, distributed below 00 m. in atitude above the sea level. 1. Dry seasonal rain forest type-on terras and Knolls surrounding the intermountain basing. Charaetristic largo trees in this plant community are Antiaris toxicaris and Carnarium abum This is again redivided into three subtypes, depeuding of their loal habitats. (1) Flat terraces dry seasonal rain forest with Plonemia lenzeana as it dominant of the ground cover. (2) On the knoll tope dry seasonal rain forest type With Geophila hebacea as dominant of the ground cover. (3) On slopes near by the ravines dry seasonal rain forest type with Selaginella pieta as dominant of the ground cover. 2. Wet seasonal rain forest type inside the ravines and narrow mountain streams. Dominant arge trees are Terminalia myrioarpa and Erythrina lithosperma etc. This is also redividd into 4 subtypes as fallows. 1) On foot of slopes inside the narrow ravines, wet seasonal rain forest type. 2) Flat bottom land inside the narrow ravines, wet seasonal rain forest type. 3) Swampy land inside the narrow ravines, wet seasonal rain forest type. 4) Local manglietia pure stand, wet seasonal rain forest type. 3. Lime stone seasonal rain forest type. Distributed on lime stone mountains and castal lands. Dominant large tree speceis are Pterospermum lanciofolium, Ulmus laneiofolia, Mallotus pseudovertieellata snd Gironniera nitida, etc. 1) Ledge of narrow ravines type. 2) Flat sloping type. First stry trees are deciduous large trees Colona sinica, Garuga floribunda, Celtis sp. and ulmus lanceofolia. etc. predominant tree in the second layer is the Gironiera nitida. Ⅱ. Tropical monsoon forest type. 1. River bed monsoon forcst is characterized by Gossampinus malabaricus. 2. Stream side monsoon forest is characteristic by Pterocarya tonkinensis and Salix araeostachya. 3. Flood-plain monsoon forest, is characteristic by shruby communities Homonia riparia as the dominant species, one of the successional stages. Ⅲ. Transitional south subtropic rain forest type (Usually distributed as a narrow strip on the middle part of the mountain slopes.) Their top layers are evergreen oaks, sublayers are characterized by rain forest structures. Ⅳ. suth subtropical montanc rain forest. Diatributed on higher elevations. 1300—1500 m. in altitude above the sea level. Dominant trees are Dysoxylon hainanenae and Calophyllum thrllii. V. Soutlr subtiopic evergen oak forest type distribution in general on evations above 800 m. in altidde above the sea level. 1. Dry oak forest type oecupies vast areas over this region. Dominated by evergreea oaks, Schima Wallichii, and Annaslea fragrana etc. 2. Wet oak forest type occupies crtain part with better moisture condition. dominant species are usually with more Lauraceae elenets. (B) Another concept to be mintioned in this special issue is the special featuere of the epiphytie moss: coniferous forest type at Wu-Liang than, Ching-Lung Station. We assume that the Tsuga yunnanensis pure forest community is originated from the north stretching southwardly to the Ching-Lung, Wu-Liang than region. It is. thought be the most souther end of the Tsuga forest community coming over the 250 latitude north, one of the nearest points toward the Eustor. On the other hand, the, tropical and subtropical piphytic moss forsts. One of the southern elements, are, common in Hainan Island and many plaoes in Yunnan. Naturally, the epiphytic moss forest is a kind of ever-green broad-leaf forest type but not coniferous type as we thonght before. The epiphytic moss forest is combined with the Tsuga eniferous forest forming & special feature at Wu-Liang than. This is a new disovery by the students of Yunman University. This now fcature has two scientific significances: (1) a new combination of plant community (2) discovry of a new florestic distribution. This scientific achievenent is apparently due to our socialist educational policy and our correct sicentific direction.

本專号包括五个自然保护区的植被調查报告,其中大勐籠、勐崙、勐臘及勐养等四个自然保护区在西双版納境內,景东无量山自然保护区在景东境內,五个自然保护区都排列在瀾滄江兩岸分佈在北緯21°—25°之間。西双板納位於云南南部,北緯21°—22°30′,东經99°55′—101°15′。全区皆为海拔540—1000公尺的盆地和低山中山,个别山峯达1800公尺。面积約25000平方公里,瀾滄江縱貫其間,一片熱帶亞热帶的风光,是一个可爱的祖国边疆。本区气候炎熱湿潤,沒有明显的四季,只有明显的乾季和雨季(或乾季、雨季、霧季三季)。年降水量1000—1800公厘。年平均温度都在18℃以上。景东无量山,受干热河谷热带气候的影响,基本上与西双版納地区相似,具有大型高山特点。在大地構造上,位于中越地台西部的横断山块断带,紅河大断裂与康滇台背斜分开,及燕山运动对本区有着巨大的影响,其基底組成,由元古代昆阳系之千枚岩、板岩和石英大理岩構成;盖层以三迭紀陆相紅色砂頁岩广泛复盖其上,厚度不下于500公尺。本区山脈走向,均是西北东南向,由西北逐漸向东南降低。澜滄水系和盆地也具有与山脈走向相一致的情况。地貌的发育是严格受着地壳構造,近代地壳运动及...

本專号包括五个自然保护区的植被調查报告,其中大勐籠、勐崙、勐臘及勐养等四个自然保护区在西双版納境內,景东无量山自然保护区在景东境內,五个自然保护区都排列在瀾滄江兩岸分佈在北緯21°—25°之間。西双板納位於云南南部,北緯21°—22°30′,东經99°55′—101°15′。全区皆为海拔540—1000公尺的盆地和低山中山,个别山峯达1800公尺。面积約25000平方公里,瀾滄江縱貫其間,一片熱帶亞热帶的风光,是一个可爱的祖国边疆。本区气候炎熱湿潤,沒有明显的四季,只有明显的乾季和雨季(或乾季、雨季、霧季三季)。年降水量1000—1800公厘。年平均温度都在18℃以上。景东无量山,受干热河谷热带气候的影响,基本上与西双版納地区相似,具有大型高山特点。在大地構造上,位于中越地台西部的横断山块断带,紅河大断裂与康滇台背斜分开,及燕山运动对本区有着巨大的影响,其基底組成,由元古代昆阳系之千枚岩、板岩和石英大理岩構成;盖层以三迭紀陆相紅色砂頁岩广泛复盖其上,厚度不下于500公尺。本区山脈走向,均是西北东南向,由西北逐漸向东南降低。澜滄水系和盆地也具有与山脈走向相一致的情况。地貌的发育是严格受着地壳構造,近代地壳运动及不等量上升和热带亞热带的各种外引力相互作用之结果,形成各种不同的地形形态,具有热带亞热带丰富的植被类型。本專号的五个自然保护区中,在大勐籠方面以乾性季节性雨林为中心,勐崙方面以石灰岩季节性雨林为中心,在勐臘方面以湿性季节性雨林为中心,在勐养方面以南亞热带山地雨林为中心,在景东无量山方面以垂直分佈带为中心,前三者結合此較紧密,后兩者皆單独論述,与其他自然保护区沒有联带关系。大勐籠自然保护区却在大勐籠地区,位于允景洪西南方約50公里处,是瀾滄江西岸一个較大的山間盆地之一,壩区海拔600公尺,南北長达38公里,东西平均寬兩公里,四周为10′30、50—60公尺高度不等的阶地,多巳为近代溝谷切割,环繞壩区的低山相对高度200公尺上下。大猛籠自然保护区,位于壩区的北面山坡上,上以山脊为界,下以壩区边緣为界,东至小街河,西至曼庄村。以小街为中心、以曼养光、曼涼傘的龙山森林为主要对象而划定的。保护区中以热帶乾性季节性雨林为主要类型,有箭毒木(Antiaris toxicaria)、大叶白顏树(Gironniera subaegualis)等极其复杂的种羣所組成,依其分佈局部地形特点及林下草被层变化特点又可分为三种亞类:①低平阶地类型,②殘丘上部类型,③近沼地坡地类型等,其次是南亞热带乾性常綠櫟树,以壳科为主的羣落类型。分佈在800公尺以上的垂直帶类型,在700—8000公尺之間形成一个热带、亞热带植被交錯分佈的过渡帶,不仅兩个类型交錯,嵌鑲分佈,而且种羣层片之間互相交錯。次生植被中以牡竹(Dendrocalamus strictus)羣落、佔据較大的分佈面积,其他还有藤灌羣落(Liauae and shruby community)、鉄刀木羣落(Cassia siamea community)、飞机草 羣落(Eupatorium odosatum community)等为普遍分佈的羣落类型。勐崙自然保护区位於北緯21°41′,东經101°25′。在瀾滄江东岸,支流罗梭江下游,勐崙壩区海拔540公尺,界于勐养与猛臘之間,正当小臘公路中段(58—65公里处)。自然保护区分兩大片,一为小臘公路側一段溝谷和低山,母質为砂頁岩。以湿性季节性雨林为主要类型,可分三个亞类:①狹谷坡脚类型,上层以番龙眼(Pometia tomentoca)为主;②狹谷平地类型,上层以干果欖仁树(Terminalia myriocarpa)为主;③狹谷沼地类型,上层以石果刺桐(Erythrina lithosperma)为主。还有过渡性南亞热带雨林,和南亞热帶乾性常綠櫟林等,分佈在較高的山坡上,成为垂直分佈带植被类型。另一大片自然保护区在石灰山区,位于罗梭江及其支流的上游,母質为二迭纪石灰岩。以石灰山季节性雨林为主要植被类型,上层散生落叶大乔木,中层常綠性強,郁闭性最大,下层贫乏。又可分为兩个类型:①狹谷坡脚类型,中层以假輪叶野桐(Mallotus pseudoverticellata)为主。②平緩坡面类型,中层以光叶白顏树(Gironniera nitida)为主。本保护区的特点是植被类型多(包括原生的和次生的)其中以石灰山植被最为特殊,组成种类中新种新屬新分佈繼續发現。勐臘自然保护区位于西双版納东南角的边緣上,紧靠勐崙自然保护区的南面,在澜滄江的东岸,支流南臘河的中下流。壩区海拔640公尺,沿河兩岸的丘陵和低山植被,保存最良好的地段,就是自然保护区所在。保护区內以湿性季节性雨林为主要植被类型,分佈面积最大,保留也良好,其中最常見的是番龙眼(Pometia tomentosa)为主的狹谷坡脚类型,局部地段見有以木蓮(Manglietia sp.)为优势。狹谷平地的类型的雨林,一般可分为四个亞类:①狭谷坡底湿性季节性雨林类型,②狹谷平地湿性季节性雨林类型,③狭谷沼地湿性季节性雨林类型,④木蓮(Manglietia sp.)羣落类型等。此外自然区內还有过渡型南亞热带雨林,上层以厚果鴨脚木(Alstonea pachyearpa)、錐栗(Castanopsis spp.)为主,下层多雨林成分。在保护区低山的山脊部分,普遍分佈南亞热帶乾性常綠櫟林,以柯屬(Pasania)和錐栗屬(Castanopsis)若干种为优势。井傘困滿(勐养)自然保护区,位於瀾滄江的东岸,紧靠江边,約当北緯23°6′—23°24′和东經100—101°的地方。面积估計約为180平方公里,西界瀾滄江边,东界昆洛公路,南界勐养河以北的山脊,北界勐满至大渡崗一线。自然保护区以內的海拔最高点达1800公尺,一般的山嶺都在1500公尺以下。本区的植被类型以南亞热帶山地雨林为主要对象,主要分佈在困满背后,海拔1200—1500公尺的山坡上。該羣落组成主要种类有:小叶海棠(Calophyllum thorelii)、單叶漆(semecarpus albescens)、布刺(Vitex guinata)、暹罗利未花(Reevesia siamensis)、海南葱臭木(Dysoxylum haianensis)等,具有丰富的雨林結構。它分佈在这样高海拔的山上是局部温度和湿度造成。一般在这样的海拔高度上,应该是屬于南亞热带常綠櫟林的范圍了。比较次要的是热帶乾性季节性雨林类型,分佈在局部河灣阶地上,海拔720公尺的地方,主要組成种类有:番龙眼(Pometia tomentosa)、八宝树(Daubanga grandiflora)、西南紫薇(Lagerstrocmia intermedia)、桂皮(Cryptocarya caesia),还有Horputtia.cupanoides 等丰富的植物种类。保护区內佔面积最大的是南亞热帶常綠櫟林,主要組成种类有,錐林屬(Castanopsis)、柯屬(Pasania)、青杠屬(Cyelobalanopsis)等屬多种植物及桉納树(Annaslea fragrans),西南木荷(Schima wallichii)等組成。次生植被中竹林佔面积亦大,以牡竹(Dendrocaeamus stsictus),为主要种类。次生的草本植物羣落类型較多,其中最主要的种类有:大管草(Themeda gigantea)、白茅草(Imperata cylindrica),棕叶蘆(Tnysanolaena maxima)、类蘆(Neyrandti arundinacea)、野古草(Arundinella hirta)及馬鹿草(Microstegium vagans)等,分别組成單优、多优、高草、中等等不同类型草本羣落。动物比較珍貴稀有的:野象羣,各种犀鳥、大斑鳩、孔雀、野牛及华南虎。其他普通种类甚多。景东无量山自然保护区位於北緯24°29′30″,东經101°4′15″,面积估計180平方公里,海拔最高点3200公尺,当地相对高度2100公尺应屬大型高山类型,山峯峻峭,山谷峽深,植被垂直分佈明显,羣落类型复杂,最主要者有下列各类。河谷壩区乾旱性植被类型,分佈在瀾滄江把边江,者干江及川河谷等河壩区上,主要为松櫟林羣落單位,以云南松(Pinus yunnanensis)为主,与多种壳科植物混生如:槲櫟(Quorens aliena)、麻櫟(Q.acutisama)、全皮櫟(Q.variabilis)等。油杉(Keteleeria Evulyniana)、安納树(Annasloa fragrans)、楊梅(Myrica、esculata)、馬櫻花(Rhododendron Delavayi)等亦常混生其中。尚有散生树木有:木棉(Gossampinus malabaricus),菲島桐(Mallotus phillpinensis),水錦树(Uendlandia panioulata)等。亞热带溝谷雨林,常綠闊叶林类型,主要分佈在溝谷中,为自然保护区最优势的羣落类型,估計佔面积5045公頃之多,其中包括以下几个羣落类型。 (1)椎櫟(Caotanopsis hystrix)——山腫藥(Cyphotheca montana)羣落; (2)西南木荷(Shima wallichii)十滇八角(Illicium yunnanensis)——滑竹(Shinatala chinensis)十小金竹(Indocalomus podolcis)羣落; (3)木蓮(Manglietia torrestii)十五角楓(Acerpictum)——牛克膝(Tustieia petntifera)羣落。 (4)旱冬瓜(Alnus nepalcnsis)十云南黑德木(Hartia yunnanensis)——滑竹(Shin atals chinensis)十山腫藥(Cyphothea montana)羣落。 (5)海木(Heynea trijuga)——桫欏(Cyathea spinulosa)羣落。鉄杉针叶林羣落,分佈在海拔2400—2900公尺的亞高山帶,可分鉄杉純林(苔蘚針叶乔木林),以云南鉄杉(Tsuga yunnanensis)为主,中国鉄杉(Tsuga chinensis)次之,福氏鉄衫(Tsuga forrestii)最少。及鉄衫(TSuga)——杜鵑(Rhododendron)林,其中杜鵑种类甚多。高山苔蘚杜鵑林和杜鵑灌叢,分佈在海拔2800—3100公尺,山的頂部,地面上,树身上都有极发达的苔蘚,厚10—20公分以上。 (1)苔蘚杜鵑林羣落,主要种类有:杜鵑屬(Rhododendron)20—30种之多,南燭屬 (Lyonia)、吊鍾花屬(Enkianthus)、馬醉木屬(Pilris)、柃木屬(Eunya)等屬多种植物组成。 (2)杜鵑灌叢羣落,由多种杜鵑植物組成,另有假馬醉木(Picris formosa)、米飯花(Vaccinium donianum)等。次生植被类型包括多种多样的羣落單位,如草地羣落主要种类有:关公草(Arundinella)蕨菜(Pteridium aquilium)等。灌叢羣落中有山柳(Elethra delavayi)、杜鵑、南燭、米飯花、香白珠(Gaultheria focrestii)等,次生乔木林羣落中有旱冬瓜(Alnus nepalensis)林、野胡极(Juglans cathaynsis)林。在海拔2600公尺处,有一山間死水塘,全部为沙草种植物Scirpus macronata、E1eocharis、Carex dispulata等所充塞。最后附有景东无量山植被垂直分佈图一幅,东坡面临川河河谷,相对潮湿,共有17个羣落單位,西坡面临瀾滄江河谷,相对乾燥,共有10个羣落單位。在本專号中,作者們提出了一些学术性間題如下:划分羣落类型系統,羣落类型分佈,植物区系等方面分述于下: (A)我們对热帶植被类型提出的一个初步分类系統如: 一、季节性雨林类型——具有热带雨株及季雨林混合特点。 (1)乾性

1. Changes in some enzymatic activities and content of -SH group of the skin of mice during carcinogenesis induced by methylcholanthrene were investigated.

(一)对表皮LDH、ATP酶、組織蛋白酶的某些性貭作了初步研究。(二)在甲基胆蒽誘发皮肤癌过程中,观察到:(1)組織提取液的蛋白貭含量有所增高;(2)GDH、GOT、谷氨酰胺酶的活性显著降低;(3)LDH的活性显著增高;(4)組織蛋白酶与二肽酶活性在增生期有所增高;在乳头瘤及皮肤癌則略有降低;(5)ATP酶活性无显著变化;(6)在增生期蛋白—SH基增多,非蛋白—SH基減少;乳头瘤与皮肤癌的蛋白—SH基接近正常,非蛋白—SH基增多。(三)在皮肤引癌早期,如滴甲基胆蒽一次后2小时,GDH活性即显著下降,而LDH活性仍接近正常。(四)滴非致癌物,蒽对表皮GDH及LDH活性无显著影响。(五)結合形态学的观察,对上述酶活性及—SH基变化在皮肤癌变中的可能意义,作了簡短討論。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关的内容
在知识搜索中查有关的内容
在数字搜索中查有关的内容
在概念知识元中查有关的内容
在学术趋势中查有关的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社