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     Studies on the liquid-liquid extraction behaviour of Cu-(Ⅱ), Co(Ⅱ),Ni(Ⅱ),Zn(Ⅱ),.Cd(Ⅱ)without usual organic solvents
     Cu(Ⅱ)、Co(Ⅱ)、Ni(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)非有机溶剂液—液萃取行为的研究
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     The dynaWave scrubber with a static mixing element under the froth zone for remixing of gas and liquid has the same effect as two series scrubbers Test showed that dust removal efficiency was >99% and the liquid entrainment in tailgas was <30 mg/m3
     由动力波洗涤器与静态混合元件组合而成的带混合元件的动力波湿式洗涤器,利用静态混合元件使动力波洗涤器泡沫区下方气—液两相再次进行湍流混合,起到了两级串联的洗涤效果,试验表明,除尘效率>99%、尾气的液沫夹带量<30mg/m3。
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     Heat transfer between gas-liquid phase and the structural wall,as well as two-phase flow,are considered in the model.
     模型考虑了液相与结构壁面、气相与结构壁面以及气—液两相之间的非稳定换热过程以及气—液两相流动过程。
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     The liquid-solid transition and solid-liquid transition occurred at 118.03 K,112.04 K and 156.26 K,158.66 K,respectively.
     在118.03 K和112.04 K发生固—固相变; 在156.26 K和158.66 K发生固—液相变.
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     The paper analyses the effects of solution pH, as well as gas-phase partial pressure of SO_2 and temperature on absorbing SO_2in waste gas with the calculation on gasllquid-solid triphase equilibrium of SO_2-H_2O system, and gives the theoretical considerations on SO_2 absorbed by alkalinous solution or metal oxide.
     本文通过对SO_2-H_2O系的气—液—固三相平衡计算,分析了溶液pH值及温度和SO_2的分压对于吸收废气中低浓度SO_2的影响,阐述了用碱液或金属氧化物吸收SO_2的理论依据。
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     FRACTURE FLUID
     压裂
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     Job liquid .
     工作
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     Liquid-Solid Extraction
     固萃取
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  - hydraulic
Development of a steady thermal-hydraulic analysis code for the China Advanced Research Reactor
      
A multi-channel model steady-state thermal-hydraulic analysis code was developed for the China Advanced Research Reactor (CARR).
      
Thermal-hydraulic performance of novel louvered fin using flat tube cross-flow heat exchanger
      
Experimental verification of the gas-hydraulic analogy with reference to the dam-break problem
      
Next-Generation Thermal-Hydraulic Code: Present-Day Tendencies for Development
      
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The dielectrie constants of toluene, carbon bisulphide, normal pentane, normal hexane, ethyl ether and iso-amyl alcohol were measured by a capacity bridge using a specially constructed liquid condenser at both 30° and 75℃ (22.4℃ only for the last liquid), for frequencies of 600,1000 and 2000 cycles per sec. and under pressures from 1 up to 12,000 kg/cm2. For the first four liquids, the dielectric constant is practically independent of the frequencies

作者用一电容桥及一特制之体蓄电器以量甲苯,二硫化碳,正戊烷,正己烷,乙醚,及异戊醇之比电容。所用温度为摄氏三十及七十五度(异戊醇之温度仅为二十二度四),频率为每秒六百,一千及二千周,压力自一气压高至一万二千气压。前四之比电容几与所用频率无关。(ε-1)/(ε+2)·1/d,(ε-1)/d及(ε~(1/2))-1/d三式中以第一式最近一常数,然压力渐增第一式之值恒随之而渐减,至一万二千气压时(在甲苯为九千五百气压),其减少约数在甲苯及二硫化碳为百分之三,在乙醚为百分之八,在异戊醇为百分之十九,显随电矩之增加而增加,至其原因篇中亦略加说明。 篇中图表惠蒙同事朱福炘先生代为抄绘,附誌谢忱。

The X ray diffraction of liquid potassium has been studied with MoKa radiation using the double filter differential method. The result of analyzing the intensity curve shows that the density fluctuation curve of liquid potassium resembles very much that of liquid sodium. Both curves have two maxima at r(2W/eN)-1/3 = 0.93 and 1.65 and two

著者应用鉏之Ka射线以定态钾之构造,得态钾之构造与态钠者同於是知凡结晶构造同属一类之单原子物质态构造亦同属一类而钾态及钠之构造皆可称曰同属含心立方类(Body-centered cubic type),蓋此类之构造与固态之含心立方晶系可证明具有密切关系也

In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50)...

In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50) for four applications at a fifteen-day intervalduring the early growth season of cotton from June 15 to July 30. The popula-tion of leafhopper, the degree of infestation, the number of green bolls andthe yield of lint cotton were statistically analyzed and discussed. Population observations showed that the three contact poisons greatlyreduced the leafhopper population on the first day after application. Butthey soon lost their effectiveness three days later, so that the population startedto rebuild up and was practically with no significant difference from that ofhe untreated plots at the end of the fifteen-day interval. While the Bordeaux mixture showed a maximum reduction of population on the third day afterapplication, and maintained its effectiveness for a considerable time; the pop-ulation was constantly checked to such an extent that no serious damage wouldoccur during the spray interval. The degree of infestation as indicated by the symptom of cyrtosis onleaves was 40.83, 47.21, 55.85, 57.66, 62.48, and 60.39 per cent in average for4-6-50 Bordeaux mixture, 2-4-50 Bordeaux mixture, yam bean seed powdersuspension, pyrethrum powder suspension and tobacco water extract and theuntreated check plots respectively. Moreover, the percentage of heavily in-fested plants for the treated and untreated plots in the fore-mentioned orderwas 5.61, 8.24, 21.88, 23.68, 28.88 and 25.27 respectively.It was evident thatin the long run the Bordeaux mixture was the most effective insecticide inreducing the degree of infestation. The number of bolls per plant was 15.27, 13.24, 10.17, 9.53, 8.75 and6.75 in average, and the yield of lint cotton was 19.50, 17.84, 11.69, 10.11and 6.24 catties per mou (1 catty=0.5 kilogram, 1 mou=0.164 acre) for thetwo types of Bordeaux mixture and three kinds of contact poisons and theuntreated check plots respectively. The yield of cotton was generally much lower in 1943 than in 1942 forthe same experimental field. This was apparently due to the poorer soilfertility and heavier leafhopper infestation in 1943. But the ratio of the yieldbetween the Bordeaux mixture treated plots and the check plots was quitedifferent in the two years, i.e. 55.62 to 31 catties per mou in 1942, and 19.50to 6.24 catties per mou in 1943. This revealed a fact that the Bordeauxmixture treatment will he applied more effectively and profitably where thecotton field is not fertile and when the leafhopper outbreak is severe. 4-6-50 Bordeaux mixture and 2-4-50 Bordeaux mixture were in all casesinsignificantly different in their effectiveness. Theiefore a 2-4-50 Bordeauxmixture would be a more economical and practical measure for the cottonleafhopper control.

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫口,减轻受害程度及增加产量诸功能,藉以证明波尔多之特性。 (二)1000倍豆薯种子粉悬、600倍除虫菊粉悬、及100倍烟草水,三者不论在消减虫口,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多与2—4—50式波尔多,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬、除虫菊粉悬、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多为优,惟至第三天,差异便不显著,三天以后,波尔多之功效反日见优越。此显示波尔多之持久特性。 (五)棉浮(鹿土)子之虫口发生愈多,则波尔多之功效愈著。因其效力持久,所抑制之虫口可还较接触剂为低。 (六)波尔多减轻棉叶之受害程度,因其药效持久,附属牢固,保护...

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫口,减轻受害程度及增加产量诸功能,藉以证明波尔多之特性。 (二)1000倍豆薯种子粉悬、600倍除虫菊粉悬、及100倍烟草水,三者不论在消减虫口,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多与2—4—50式波尔多,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬、除虫菊粉悬、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多为优,惟至第三天,差异便不显著,三天以后,波尔多之功效反日见优越。此显示波尔多之持久特性。 (五)棉浮(鹿土)子之虫口发生愈多,则波尔多之功效愈著。因其效力持久,所抑制之虫口可还较接触剂为低。 (六)波尔多减轻棉叶之受害程度,因其药效持久,附属牢固,保护力强,故亦较三种接触剂为优。 (七)施用波尔多后,结铃数显然增加。其功效亦优于三种接触剂。 (八)施用波尔多后,每亩皮棉产量亦显著增加。本年结果,施用4—6—50式波尔多者,产量较对照区增多3.12倍,2—4—50式波尔多区较对照区增产2.85倍

 
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