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zones
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     ON THE FRACTURE ZONES OF CHANGMA (昌马) EARTHQUAKE OF 1932 AND THEIR CAUSES
     1932年昌马地震破裂及其形成原因的初步探讨
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     PRELIMINARY ANALYSIS OF THE EARTHQUAKE'S DEFORMATION ZONES AND STRUCTURAL BACKDROP IN THE 1932 CHANG MA EARTHQUAKE (M=7.5)
     1932年昌马7.5级地震形变及其构造背景的初步分析
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     On the Finite Element Method for Trensforming the Zones of Gauss Projection
     高斯投影换计算的有限元法
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     TECTONIC CHARACTERISTICS OF MANITE DEPRESSION IN EREN BASIN AND PREDICTION OF HYDROCARBON ENRICHMENT ZONES
     二连盆地马尼特坳陷构造特征与油气富集预测
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     STRUCTURAL CONTROLLING FACTORS IN THE FORMATION OF LATE CARBONIFEROUS COAL-RICH ZONES AND CENTERS IN SHANXI
     山西晚石炭世富煤及富煤中心区形成的构造控制因素
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     Analysis for Deformation and Shear Zones of Reinforced Embankment
     加筋路堤变形特性和剪切屈服分析
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     Designing and Application of a DTGARCH Exchange Rate Model Based on Theories of Target Zones
     基于目标理论的三制度DTGARCH汇率模型构建及应用研究
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     Nonlinear Finite Element Analysis of the Development of Plastic Zones in Soft Clay Foundations
     软粘土地基塑性开展的非线性有限元分析
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     A Thermodynamic Analysis and Experimental Study on the Reactions of the Source Zones in a Growth System of GaN
     氮化镓生长系统中源反应的热力学分析和实验研究
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     Free Export Processing Zones Development and Future
     自由出口加工的发展与未来
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     The remelting of consumable electrode and the Mg distribution in various zones at electrode tip during VAR process of a Ni-base superalloy Ni-10Cr-15Co-6W-6Mo-4Al-2Ti were studied.
     研究了镍基高温合金Ni-10Cr-15Co-6W-6Mo-4Al-2Ti真空电弧重熔过程中自耗电极熔化特征及电极端部不同区域内Mg的分布。
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     (2) the area in northern China is divided into 32-36°N,36-40°N,40-44°N,44-48°N,48-52°N zones in latitudinal direction.
     将中国北方13省、区按纬向划分为32~36°N,36~40°N,40~44°N,44~48°N,48~52°N等5个区域。 基于最大变化斜率法估测了不同年份的生长季开始、结束和长度;
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     The thickness of regions shown on T 1WI and T 2WI correlated with that of histological zones (r=0.91).
     在SET1WI和T2 WI像上 ,各层不同信号区域的厚度与相对应的微细解剖结构的厚度具有良好的相关性 (r =0 .91)。
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     Integrated anomaly zones of HT-1,HT-2 and HT-9 may be selected as targets.
     主攻区域应首先选择HT综-1、HT综-2及HT综-9综合异常分布区。
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     In this thesis, Ecological Function Regionalization (EFR) refers to the process of dividing a certain study area into various ecological function zones according to the similarities and dissimilarities of regional eco-environmental characteristic, eco-environmental sensitivity and the importance of eco-services.
     福建省生态功能区划研究内容提要:生态功能区划,是指在分析研究区域生态环境特征与生态环境问题、生态环境敏感性和生态服务功能空间分异规律的基础上,根据生态环境特征、生态环境敏感性和生态服务功能的重要程度在不同地域的差异性和相似性,将区域空间划分为不同生态功能区的研究过程。
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     Strategic Study on the Sustainable Development of "Five Special Economic Zones" in China
     中国五大经济特区可持续发展战略研究
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     Applying Flow Cytometry to Study the Distributions of Ultraphytoplankton in Typical Zones of East China Sea and Yellow Sea
     应用流式细胞计研究超微型浮游植物在中国东、黄海典型水域的分布
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     THE CLIMATIC FRONTAL ZONES OVER EAST ASIA
     东亚的气候鋒
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     A STUDY ON ECOLOGY OF INTERTIDAL ZONES ALONG NORTHERN COAST IN HANGZHOU BAY Ⅰ .A SURVEY ON THE BENTHIC FAUNA COMMUNITY IN THE SOET BOTTOM
     杭州湾北岸潮间带生态学研究——Ⅰ.软相底栖动物群落调查
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     RARE EARTH SEPARATION WITH NTA BY HIGH PRESSURE ION-EXCHANGE DISPLACEMENT CHROMATOGRAPHY——Ⅰ. BOUNDARY BETWEEN THE STEADY STATE ZONES
     用NTA为螯合剂的高压离子交换排代色层法分离稀土的研究——Ⅰ.稳定区段的界面
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  zones
In order to explore the release of nutrients and the effects of global warming on the decomposition rate of forest litter, an experiment is designed to reciprocally decompose forest foliar litter in two sites across climatic zones: Mt.
      
The results revealed distinct differences between those three vegetation zones along each transect line.
      
The greatest evenness indices (E) were found in the arid grassland zones.
      
The Huanglong Mountain forest zone is one of the major natural secondary forest zones in the southern Loess Plateau in Shaanxi Province, China.
      
First, based on the principle of point visibility, inner loops are eliminated, and simple polygons are subdivided into monotonous polygons with the minimal zones.
      
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The Mannich bases derived from phenylacetone (Ⅰ,R=Me)and dibenzyl ke- tone (Ⅰ,R=CH_2Ph) prepared in our previous work gave expected semicarba- zones(Ⅱ) in neutral or slightly acidic media.Degradation of their methiodides gave vinyl ketone semicarbazones (Ⅲ).The structure of the latter was shown by their characteristic ultra-violet light absorption properties,and they gave in- tense absorption bands near 260 mμ.The pyrazolinecarboxamides (Ⅳ),if formed,would behave more like saturated semicarbazones such...

The Mannich bases derived from phenylacetone (Ⅰ,R=Me)and dibenzyl ke- tone (Ⅰ,R=CH_2Ph) prepared in our previous work gave expected semicarba- zones(Ⅱ) in neutral or slightly acidic media.Degradation of their methiodides gave vinyl ketone semicarbazones (Ⅲ).The structure of the latter was shown by their characteristic ultra-violet light absorption properties,and they gave in- tense absorption bands near 260 mμ.The pyrazolinecarboxamides (Ⅳ),if formed,would behave more like saturated semicarbazones such as Me·CO·CHMePh and CH_2Ph·CO·CHEtPh,which gave maxima located at about 230mμ.The vinyl ketone semicarbazones could not be converted to the cyclic compounds (Ⅳ) by treatment with concentrated sulphuric acid.It was recalled that Δ~2-isoxazolines,beside vinyl ketone oximes,were obtained by us previously from the degradation of Mannich base oxime methiodides. Both the dimethylamino(I:R=CH_2Ph,R'=Me) and the diethylamino(I: R=CH_2Ph,R'=Et) compounds gave the identical product (Ⅷ) on treatment with semicarbazide hydrochloride in the presence of excess sodium acetate.It was recalled that an abnormal compound,m.p.101-102,was formed by these two Mannich bases on treatment with hydroxylamine hydrochloride and sodium acetate.This product might be (Ⅶ),formed by elimination of a mole of hy- droxylamine from (Ⅸ),which is analogous to (Ⅷ). Treatment of the Mannich base (I,R=CH_2Ph,R'=Me) itself with sodium acetate gave dibenzyl ketone.This is the reverse change of the original Mannich reaction.However,its methiodide,on degradation with sodium hydroxide, gave a vinyl ketone which readily dimerised into a dihydropyran (Xa or Xb). Several expected pyrazolines were obtained from the Mannich bases and phenylhydrazine.Their ultra-violet light absorption characteristics were listed.

几个 Mannich 碱在中性或微酸性的情况下制成它们的缩氨基脲,其中一个Mannich 碱在碱性情况下形成一个含有两分子氨基脲的物质。那些 Mannich 碱缩氨基脲的季铵碱当在碱性情况下递降时生成乙稀酮的缩氨基脲,而不生成环状的化合物(Ⅳ)。从二苯甲基酮衍生的一个 Mannich 碱经醋酸钠作用后变为原来的1,3-二苯基丙酮,但这个 Mannich 碱的季铵盐经碱作用后成为乙稀酮,而这个乙烯酮迅速贰聚。几个4,5-二氢隣二氮杂茂自 Mannich 碱如预期地形成。上列许多产物的紫外线光谱曾经测定。

Various kinds of acid igneous rocks are found around the Kushan, to theeast of Foochow, Fukien. One earlier variety of the granites, provisionally termedas Kushan Granite, is coarser-grained, often flesh-colored, and biotite-bearing,similar in character to the most frequently seen and widely distributed graniteof whole Fukien; the other, the Kueichi Granite, often intruding into the firstnamed, is colored by different shades of grey, mostly, fine-grained, and mia-rolitie, containing minor amount of hornblende...

Various kinds of acid igneous rocks are found around the Kushan, to theeast of Foochow, Fukien. One earlier variety of the granites, provisionally termedas Kushan Granite, is coarser-grained, often flesh-colored, and biotite-bearing,similar in character to the most frequently seen and widely distributed graniteof whole Fukien; the other, the Kueichi Granite, often intruding into the firstnamed, is colored by different shades of grey, mostly, fine-grained, and mia-rolitie, containing minor amount of hornblende instead of biotite, yet sometimesvarying its texture to felsitic, porphyritic, or even to micro-graphic. In thecourse of weathering, the soils thus formed from these two granites, as well astheir corresponding surface vegetations are also evidently dissimilar. That the Kueichi granite was really intruding into the Kushan is evidencedby its ramifying apophyses in the latter, its broad marginal phase, its miaro- litie cavities elongated and lined parallel to the intrusive contact and the"sericitization front", so to show a convex curvature facing the Kushan Graniteside along their mutual contact. The prevalent strike of the contact of the granites conicides with thefracture and joint systems of the Kushan Granite, one set of which is N65°E,being also parallel to one of the major vertical joints of the Kueichi. This isprobably due to the prolonged fracturing during the formation of Pacificfolding zones of the Chekiang and Fukien coast, rendering the KueichiGranite intruding along the said fracture system yet itself subjected to the samemechanical stress. Rocks correlated to these two granites are found elsewhere in Fukien. Theymay also be comparable to the two granites of Sihwashan, S. Kiangsi, foundby C. S. Mo and his colleagues. The repeated intrusions of the Post-Jurassicgranites may allow to consider the possibility of repeated formations of theirgenetically related ores. The lead-zinc deposits of Yuntai and Lungyai areprobably related to the igneous activity of the Kueichi Granite.

经初步瞭解,福建鼓山分布着两种后侏罗纪花岗岩。这从岩石地面分布上的接触情况与显微镜下观察的岩石中组成成分的接触情况两方面得到证实的。从二者产生状态看来,彼此生成时间甚为接近,而同属於太平洋运动产物,分属早晚期活动。再根据前人各种地质文件,推论出福建各地普遍存在着相当於这两种侵入的花岗岩类岩石。因此,联系到福建后侏罗纪金属矿成矿作用的多次性可能。这在江西西华山已有发现。此后从多次性来研究后侏罗纪的炎成矿床的成矿作用,成为必要了。

During the smelting of an iron ore containing high fluoride content in a small blast furnace, the hearth refractories were severely corroded. This can be ascribed to the action of very fluid fluoride-containing slags.Moreover, the products of corrosion reactions also have low viscosity which easily flow away from the working face, and leave a new surface fresh for further attack.The stack lining with the same 45%-Al_2O_3 blast furnace brick was, however, in fairly good condition. The chemical analyses of the...

During the smelting of an iron ore containing high fluoride content in a small blast furnace, the hearth refractories were severely corroded. This can be ascribed to the action of very fluid fluoride-containing slags.Moreover, the products of corrosion reactions also have low viscosity which easily flow away from the working face, and leave a new surface fresh for further attack.The stack lining with the same 45%-Al_2O_3 blast furnace brick was, however, in fairly good condition. The chemical analyses of the inner surface of the brick samples show a high percentage of alkali-,alkaline earth-and fluoride-ion contents. But as the amount of melt formed at the temperatures on these zones is comparatively little, that corrosion is not severe.Minerals identified at the stack lining surface consist of: fluorite, fluoro-biotite, kaliophilitenephelite, leucite, cuspidine and spinels etc. This is the first time that mica minerals have ever been identified in blast furnace linings. It is thought that the formation of fluoro-biotite has fixed a part of the F~-, K~+ or Ca~(2+)-ions, which would otherwise go into the melt. Thus its formation actually exerts some protective action against the corrosion of the stack lining.The higher temperatures prevailing in the bosh region in contrast to the stack caused the formation of a much larger amount of fluoride-containing melt, which is probably responsible for the remarkable degree of Corrosion on the bosh refractories.High temperature experiments carried out in the laboratory on the reactions betwccn CaF_2 and 45%-Al_2O_3 brick powder in closed graphite crucibles throw light to explain the process of corrosion of the furnace lining. Hexagonal anorthite was identified in all of these experimtnts, which has identical optical properties and X-ray diffraction patterns with those of hexagonal anorthite synthesized in our laboratory. It is also interesting to note that these hexagonal anorthites change over to normal triclinic modification under heat treatment at 1000℃ for a period of 24 hours.As a result of this and other previous studies in this laboratory, the appropriate selection of refractory materials for the lining of blast furnaces, smelting iron (?)e containing high fluoride content, is recommended.

在某地高氟含量铁矿石的冶炼过程中,炉缸粘土质高炉砖砖视遭到了极其严重的破坏作用。主要侵蚀介质是含氟炉渣,侵蚀产物容易从砖面流失,因而加速了耐火材料的溶解。在炉身部位发现的矿物是:氟化钙、含氟黑云母、钾和钠的铝矽酸盐、枪晶石及尖晶石等。虽然在砖面附着物中包含着相当数量的氟、硷金属及硷土金属的化合物,但是由于温度较低,只有少量熔体出现,砖衬的损毁情况,并不严重。在高炉砖衬中发现云母矿物,还是第一次。在炉身部位的温度条件下,含氟黑云母具有固定F~-,K~+成Ca~(+2)的能力,对砖机起了保护作用。由于炉腹部位的温度较高,较大量含氟熔体出现,侵蚀就相当显著了。 CaF_2—45%Al_2O_3高炉砖的化学反应实验,可以帮助了解高炉砖视的损毁过程。反应产物中发现有六方钙长石,与实验室合成的六方钙长石具有一致的光学性质和X—射线粉末衍射图型。经过1000℃,24小时热处理后,这种六方钙长石会转变成为三斜晶系变体。 根据两个高炉砖衬的化学-矿物学研究及实验室中辅助研究的结果,对于冶炼高氟含量矿石的高炉砖衬的选择提出了建议。

 
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