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     Samples are extracted with methanol. Residues of dipterex are determined directly on a column of 4% PEG-ZM coated on 60~80 mesh Chromosorb W(AW)-DMCS support. The detection limit for dipterex is 0. 005ppm.
     样品用甲醇提取,在4%PEG-2M/ChromosorbW(AW)-DMCS(60~80目)柱上,检测敌百虫的残留,它的最小检出浓度为0.005ppm。
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  “目)”译为未确定词的双语例句
     Retention times for acetochlor,metribuzin and internal standard dibutyl sebacate on 4% OV-225/Chromosorh W-HP were 10. 45, 17. 24 and 12. 90 minutes, respectively.
     在4%OV-225/ChromosorbW-HP(80~100目)色谱柱上乙草胺、嗪草酮和内标物癸二酸二丁酯的保留时间分别为10.45,17.24和12.9分钟,实现了良好的分离。
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     The content of moisture in hydroxylation solution of phenol nd hydrogen peroxde solution was determined adopting 3 x 0.5 x 2000 stainless steel column packed inside GDX-102(80~100 mess) and alcohol as internal standard matter, under the selected chromatography conditions . The method is simple rapid and accurate The recoveries are 99.5% ~101.3% and the standard deviations are 0.055~ 0.057,
     采用了3×0.5×2000不锈钢柱内填充GDX-102(80~100目),在所选择的色谱条件下.以乙醇为内标物,测定了苯酚和双氧水羟化反应液中水分的含量.该方法简便、快速.准确性较好.回收率为99.5%~101.3%.标准偏差为0.055~0.057(n=5).
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     It is found by using XPS that Cu (125 μm) is turned into Cu 2O and Cu (nanometer) is turned into Cu(-CH 2-O-) n on the steel counterface.
     XPS分析钢对偶面发现,Cu粉(200目)在摩擦过程中生成Cu2O,而纳米Cu粉在摩擦过程中生成Cu(-CH2-O-)n。
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     Oxalic acid is esterified firstlywith esterifying agent and converted into dimethyl oxalate at 60℃,and then determined by gas chromatography with column of 5%PEG--20M on chromosorb W A·W--DMCS(60~80mesh).
     本法使用FID检测器,5%PEG—20M涂渍在chromosorbWA,W—DMCS(60~80目)的色谱柱(3m×4mm),N_2为载气,柱温105℃,草酸二乙酯为内标物。
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     The gas chromatographic conditions were as follows: column: 10%SE-30/201 diatoport PAW (60~80mesh) 2m×3mm i. d. at 240℃; iniect at 260℃;
     色谱条件:2m×3mm柱、内填10%SE-30/201酸洗红色担体(60-80目),使用FID,柱温240℃,进样口和检测器温度均为260℃,氮气作载气40ml/min。
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     Reviewers' Conclusions Current evidence couldn't draw the final conclusion.
     结论 
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     A MODIFIED LARGE--MESH TRAWL
     疏底拖网
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     THE STUDY ON THE RESOURCE OF BOLETALES IN HENAN
     河南的牛肝菌资源研究(Ⅰ
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     2.Baculentulus tienmushanensis is the dominant species in this area.
     2优势种是天巴虾;
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A tank experiment to study the rainfall characteristics,degree of slope and kinds of crops in relation to erosion of the Szechuan purple brown soil was carried out on the experimental farm of the University of Nanking in Chengtu during the period from 1941 to 1945 inclusive.The text consists of the results,of four years only,that of the first year being used for reference.

本试验就成都南郊金陵大学农场利用箱具装置以求降雨,坡度及作物种类对于四川紫棕土冲蚀之关系,试验自1941年须始至1945年年底为止,本报告包括1942至1945年四年记录;最初一年记录仅供参考未列入计算。试验中之箱具係木制,长1.8公尺,宽0.35公尺,深0.33公尺,共四具,分别置于5%,10%,20%及30%之四种坡度上,内盛四川红色盆地中之一种紫棕色粘土。降雨之时,每廿小时测定雨量,逕流及土壤冲矢量各一次,试验中192及1943两年行播芝蔴代表茎葉稀疏之作物,1944及1945年密播大豆代表茎菜密茂之作物。四年结果中之要点如下:(i)本试验四年中成都年降水量总平均为959.9公厘,最少年为689.9公厘而最多年为489.8公厘,本试验芝蔴年度平均降水量为734.0公厘,而大豆年度平均降水量为1185.8公厘。(ii)成都降雨烈度可暂按廿四小时内雨量,分为0—3.9m.m.,4—7.9m.m.,8—11.9m.m.,12—23.9m.m.,24—17.9m.m.,4(?)—95.6m.m.,96—191.9m.m.,等七级,四年中廿四小时内最多雨量可自84.2公厘至183.2公厘不等,此项烈雨可降于六月初...

本试验就成都南郊金陵大学农场利用箱具装置以求降雨,坡度及作物种类对于四川紫棕土冲蚀之关系,试验自1941年须始至1945年年底为止,本报告包括1942至1945年四年记录;最初一年记录仅供参考未列入计算。试验中之箱具係木制,长1.8公尺,宽0.35公尺,深0.33公尺,共四具,分别置于5%,10%,20%及30%之四种坡度上,内盛四川红色盆地中之一种紫棕色粘土。降雨之时,每廿小时测定雨量,逕流及土壤冲矢量各一次,试验中192及1943两年行播芝蔴代表茎葉稀疏之作物,1944及1945年密播大豆代表茎菜密茂之作物。四年结果中之要点如下:(i)本试验四年中成都年降水量总平均为959.9公厘,最少年为689.9公厘而最多年为489.8公厘,本试验芝蔴年度平均降水量为734.0公厘,而大豆年度平均降水量为1185.8公厘。(ii)成都降雨烈度可暂按廿四小时内雨量,分为0—3.9m.m.,4—7.9m.m.,8—11.9m.m.,12—23.9m.m.,24—17.9m.m.,4(?)—95.6m.m.,96—191.9m.m.,等七级,四年中廿四小时内最多雨量可自84.2公厘至183.2公厘不等,此项烈雨可降于六月初至八月底之间,廿四小时内大于24公厘之雨日可自七日至十七日不等。(iii)芝蔴年度年降水量虽较大豆年度为低,但逕流占年雨量百分数,依坡度顺序,则前者各为16.95%,19.23%,25.71%及27.66%而后者各为3.96%,9.06%,9.63%及10.62%。(iv)四年中逕流量之实际数值,依坡度顺序,芝蔴年度各为129.11公厘,143.79公厘,193.54公厘及216.64公厘,而后者各为53.37公厘,120.59公厘,121.60公厘及135.07公厘。逕流逐月分布隨雨量分佈而变异,惟大豆作物有使逕流分佈百分数,向各月分散之趋势。又芝蔴年度七月份或八月份之逕流量可占年逕流量70%以上。(v)逕流之大部由于廿四小时内大于24公厘之雨量所发生,各坡度上大于24公厘之烈度等级中,在芝蔴年度,其分佈百分数之和幾全人於80%,而在大豆年度,其分佈百分数之和,自约38%至90%以上不等。芝蔴年度逕流量之实际数值较大豆年度为大,但逕流量隨坡度增加之比率则芝蔴年度较大豆年度为小。(vi)土壤冲失量之实际数值,依坡度顺序,芝蔴年度各为每市亩773.91市斤,832.5市斤,2004.93市斤及2822.62市斤,而大豆年度各为每市亩270.02市斤,370.50市斤,666.53市斤及762.95市斤,大豆年度中雨量特別丰沛之年,大豆护土力在大坡度上(坡度30%)更为显盖。(vii)芝蔴年度月雨量对于土壤冲矢量之影响大于对于逕流量之影响,月雨量增多,使同月土壤冲失量增加之百分数较使同月逕流量增加之百分数为大,大豆年度则反是。芝蔴年度土壤冲失量之实际数值较大豆年度为大,土壤冲失量隨坡度增加之比率,芝蔴年度亦较大豆年度为大。(viii)据本试验情形,某一日之前五日内如降落巨雨,则该日急雨可发生甚大量之逕流及土壤冲失,芝蔴年度此种情形甚显,但大豆年度则不显。(ix)大豆作物之护土力,由于宽阔平向之叶面及密茂之莖叶可遮蔽地面以防雨滴之打击,而落叶护土亦可使地面流水澄清而维持土壤之渗漏速率,又麦稈覆盖地面之护土效力甚宏,如于大豆莖叶向未郁閉之前用之,可防初夏急雨之冲蚀。(X)自成都向南至仁寿县一带之紫棕土斤陵地,可行玉米与大豆等高行栽之间作制,惟大豆宜密植以收护土之效,若能于生长前期,地面覆盖麦稈,则土壤冲蚀之害可大减。

The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting...

The present paper reports on two lamellicorn beetles: Adoretus tennuimacu-latus Waterh. and Liocola brevitarsis Lew. The former belongs to the subfamilyRutelinae and the later Cetoniinae. Adoretus tennuimaculatus has two generations per year at Lientang. Thefirst active period of adults mostly occured in June and the second period inAugust. After 7: 30 at night, the adults went out and stayed on various hostplant leaves feeding or copulating and then back into earth at dawn. Larvaewere not strict in selecting the soil but most of them lived in the garden soil,mound soil and. clay landside. Liocola brevitarsis has only one generation per year at Lientang. The adultperiod was from June to September and some of them lengthened out mid-Octo-ber. Adults flied out at day time and sucked the different part of hosts: as theflesh of fruit, the juice of tree and the corn ear, once in a few days. Larvaeselected the soils more strictly. They concentrated in compost and rich humussoil. Controlling methods: (1) To spray 0.5%γ666 or 25% DDT emulsion (250water:1 emulsion) once to the host leaves was effective in protecting against theadults of Adoretus till its last period of activity. (2) To shake the tree to makethe adults of Adoretus fall down and then unroll a piece of white cloth underthe tree to gather the adults. (3) To make a bamboo cylinder, 12-16 in. long,which was filled with rotten fruits and nectar, and trap all the adults of Liocolain this cylinder. (4) To clean out the compost before June in order to kill mostof the larvae and pupae of Liocola.

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,...

1.本文所述的两种金龟子,其一为茶色金龟子,属鞘翅,金龟子科中的Rutelinae亚科,其二为铜色白纹金龟子,属Cetoniinae亚科。 2.茶色金龟子在莲塘一年发生二代。其第1次成虫盛期多在6月。第2次则在8月;铜色白纹金龟子,一年仅发生一代,其成虫出现期为6至9月,少数可延长到10月中旬。 3.茶色金龟子的成虫,为夜出性,傍晚7时半后,即开始出土,停息在多种寄主植物的叶片上,取食或交配,拂晓时飞返土中。铜色白纹金龟子的成虫,为日出性,取食成熟果子,玉米苞穗及多种树木的浆汁,亦喜取食。既钻入后,可连续数日不出。 4.两种金龟子的幼虫,都栖息在土中。茶色金龟子幼虫以在菜园土中、丘陵黄土地及属于粘壤性质的田塍内为多,对于土壤性质选择,较不严格。铜色白纹金龟子幼虫则多集中在腐熟的堆肥及腐殖质极丰富的土中,对于土壤,有比较严格的选择性。 5.关于防治方法:茶色金龟子在成虫期曾试用了0.5%γ体666粉及25%DDT乳剂(1份加水250份〕喷撒,第1种药适用于叶面较粗糙的植物,第2种则可用于叶面较光滑的植物,只要喷撒1次,便能在整个成虫发生期中,避免其飞来取食。铜色白纹金龟子的成虫,则可采用竹筒诱杀,筒高12—16寸,筒内盛腐熟果子及蜜,贴靠枝杆悬挂,能将圆内所有成虫,全部诱入筒中。此外,前一种成虫,并可利用外出?

Two new crystalline alkaloids were isolated from the Chinese drug, Li-lu, Veratrum spp., collected from Mount Tien-Mu, Chekiang Province. They are provisionally named tienmulilmine and tienmulilminine respectively. The formula for the former is C_(27)H_(43)ON, m.p. 172°-174°, and [a]_(?)~(16)=-99.3° (in CH_3OH, 6.44%). The following crystalline salts have been prepared: (1) hydrochloride, fine needles, m.p. 302°; (2) hydrobromide, plates, m.p. 307°; (3) methiodide, rhombic prisms, m.p. 244°.Tiemulilminine has...

Two new crystalline alkaloids were isolated from the Chinese drug, Li-lu, Veratrum spp., collected from Mount Tien-Mu, Chekiang Province. They are provisionally named tienmulilmine and tienmulilminine respectively. The formula for the former is C_(27)H_(43)ON, m.p. 172°-174°, and [a]_(?)~(16)=-99.3° (in CH_3OH, 6.44%). The following crystalline salts have been prepared: (1) hydrochloride, fine needles, m.p. 302°; (2) hydrobromide, plates, m.p. 307°; (3) methiodide, rhombic prisms, m.p. 244°.Tiemulilminine has the composition, C_(34)H_(51)O_8N, m.p. 231°, and [a]_(?)~(13)=+24° (in CH_3OH, 1%). It forms following crystalline salts: (1) hydrochloride, prismatic needles, m.p. 215°; (2) hydrobromide, prismatic needles, m.p. 226°; (3) thiocyanate, needles, m.p. 227°; (4) picrate, bundles of yellowish needles, m.p. 201°; (5) methiodide, spherical crystals, m.p. 224°.

從天山藜廬中分得两种新植物鹼,暂命名为天藜廬鹼甲和天藜廬鹼乙。前者实验式为C_(27)H_(43)ON,熔點172—174°,[a]_D~(16)=-99.3°,已製成其结晶的盐酸盐等。後者的实验式为C_(34)H_(51)O_8N,熔點231°,[a]_D~(13)=+24°,亦已製成其结晶的盐酸盐等。当天藜廬鹼乙水解後,可得其结晶的胺鹼的盐酸盐,熔點192°。另從上海购买的藜廬中,分得一金黄色针状色素,实验式为C_(10)H_8O_3,熔點172°,已製成其结晶的乙酸酯和溴化物。

 
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