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The result showed simple imidazolium based ionic liquids had excellent catalytic activity, especially when under mild conditions with 0.5 equiv. EMIMBr / K_2CO_3(1 /1.1) in CH_2Cl_2, the desired benzoin was obtained in yield of 86%.

结果表明简单咪唑基离子液体对安息香缩合反应具有比较高的催化活性，当在CH_2Cl_2中，50mo1%EMIMBr/K_2CO_3(1/1.1)时，苯偶姻产率可达86%。

Super hybrid rice Gangyou 527 was used to investigate the effects of three irrigation regimes(submerged irrigation, dry cultivation, the treatment W2 that damp irrigation before booting stage, shallow irrigation at booting stage, wetting-drying alternation irrigation from heading stage to mature stage) and different amounts of N application on photosynthetic rate, activities of nitrate reductase, glutamine synthetase, glutamate synthase, endopeptidase in flag leaves, bleeding intensity in basal internodes and grain yield during grain filling, and studied correlations among the photosynthesis, nitrogen metabolism enzyme activity and root vigor at this stage.

以超高产杂交稻冈优527为材料，通过淹水灌溉、湿润灌溉＋浅水灌溉＋干湿交替灌溉（W2处理）和旱种3种灌水处理及不同的施氮量，研究水氮互作对结实期水稻剑叶光合特性、氮代谢关键酶及根系活力等生理性状和产量的影响，并探讨各生理指标间的相互关系。

Making objects that are topologically complex, such as cubes, has required many synthetic steps and has given only a low yield.

那些具有拓扑复形的物体，比如立方形，要求许多人工合成的步骤，导致产量极低。

In recent years, the county science, forestry departments, townships and villages have established research institutions and persuaded dwarf chestnut grafting, planting,Chestnut bad for the elderly and high-yielding varieties and grafting the first test, a dwarf planting, saplings grafted three years,fourth per-mu yield of 448 kg of good results.

近年来，由县科委、林业部门配合乡镇、村建立了科研机构，大搞板栗矮化嫁接，密植，丰产及劣品种老栗树换头嫁接等试验研究，取得了矮化密植，幼树嫁接，三年结果，第四年亩产500斤的好成果。

The ion mobility was measured at different temperatures and the effects of the temperature in drift tube on the variety and yield of the reactant ions and product ions were discussed.

离子迁移率、反应物离子的种类和产量与漂移管工作温度有很大的关系。

The ion mobility was measured at different temperatures and the effects of the temperature in drift tube on the variety and yield of the reactant ions and product ion s were discussed.

本研究在不同温度下进行了离子迁移率实验，结果表明，离子迁移率随温度的升高而增大，而提高工作温度可以减少水分子对产物离子的影响，有利于改善系统检测的分辨率；选择合适漂移管工作温度，能有效地增加反应物离子的产量，从而提高系统检测的灵敏度和选择性。

The results show that the ion mobility increases as temperature rises; the influence of water vapor on product ions was reduced and the system resolution was enhanced at a higher temperature. In addition, the reactant ion yield can be effectively increased by choosing a proper temperature in drift tube, and improves the sensitivity and selectivity of system.

本研究在不同温度下进行了离子迁移率实验，结果表明，离子迁移率随温度的升高而增大，而提高工作温度可以减少水分子对产物离子的影响，有利于改善系统检测的分辨率；选择合适漂移管工作温度，能有效地增加反应物离子的产量，从而提高系统检测的灵敏度和选择性。

This is considerably important to dredge up antecedent precipitation to mitigate the hazards of abrupt sediment yield.

运用软件工程的思想，根据生命周期法，本文首先介绍了软件开发的一般方法，然后介绍了在玉丰流域水土保持决策的开发中所进行的设计，最后，简要地介绍了系统的主要功能。

N-guanylurea dinitramide was synthesized with N-guanylurea hydrochloride as primary substance by hydrolysis and double decomposition reaction in turn and the overall yield of GUDN is 79%.

以盐酸脒基脲为原料，通过水解、复分解反应，合成了N-脒基脲二硝酰胺盐，总收率可达79%。

Thus, they share with utilitarians the notion that penal laws should yield some demonstrable beneficial consequences .

因此，他们与功利主义者持有相同的观念：刑法应当产生一些明显而有益的结果。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。