查询词典 preparation

The results show that, the static interfacial polymerization was conducted in organic phase. The optimized conditions for NF membrane preparation were obtained: the concentration of PDMAEMA was 2%, the concentration of p-xylylene dichloride was 1 ~ 1.5%, NaHCO_3 can be used to maintain alkalescence, The polymerization can be carried out at room temperature and the reaction time was 5 hour.

研究结果如下：此界面聚合反应在有机相中进行；较优的制备条件为：PDMAEMA浓度为2%，对二氯苄浓度为1～1.5%，应加入少量的NaHCO_3来维持溶液的微碱性，室温下反应即可进行，反应时间为5小时。

An additional alternating electric field was applied in preparation of dichroic sheet so as to enhance Weigert effect.

报道了在诱导二向色片的同时附加高频电场的方法能够有效地增强维格特效应。

In the experiment, three kinds of solution which contain glycerol, sucrose and potassium dichromate are preparation.

第三部分，建立基于2×2熔锥型光纤耦合器的溶液浓度传感测量实验系统。

Now the research on HPL focus on dicotyledon, and the research on HPL of monocotyledon still havent been reported. In this paper, the research on cloning of rice HPL and enzyme activity assay were carried out and several result were obtained.1. Enzyme activity assay of rice HPLBased on the method of measure HPL Enzyme activity in other plants, the means on preparation of hydroperoxides and measurement rice HPL activity were set up. The 9-HPL arid 13-HPL activity of several rice varieties with different storability and different dormancy were tested.

本试验建立了水稻的HPL酶活性测定体系，测定了水稻萌发过程中的HPL酶活性，并进行了水稻HPL基因的克隆及表达研究，结果如下： 1、水稻HPL的酶活性测定在参考其它植物HPL酶活性测定方法的基础上，建立了水稻的HPL底物发生体系和酶活性测定体系，并测定了不同贮藏性水稻品种萌发过程中的种胚9-HPL、13-HPL活性和不同休眠性水稻品种种子的9-HPL、13-HPL酶活性。

This paper introduced the main equipment and basic parameter of flash welder, narrated basic work principle of welder and its preparation process systematically, Meanwhile, analyzed how to control and adjust its parameter for differential specification, especially super-thin strip from BSP product line.

介绍了本钢冷轧厂闪光焊机的工作原理及基本焊接数据，详细的分析了针对不同规格产品焊机的工艺参数控制与调节，尤其针对冷轧厂超薄规格的BSP短流程的热轧来料，经过大量的焊接实验，从原料、设备、工艺等各个角度进行了全面系统的分析，给出了适合冷轧厂生产的完整焊接工艺参数，从而达到了优良焊接的目的。

Diglyceride is one kind of new and promising chemical product. In this paper, the preparation of DG in different conditions were studied.

本论文主要对双甘酯的酶促甘油醇解、水解以及超声波外力场辅助酶促水解制备进行了研究。

Diglyceride is one kind of new andpromising chemical product. In this paper, the preparation of DG indifferent conditions were studied.

本论文主要对双甘酯的酶促甘油醇解、水解以及超声波外力场辅助酶促水解制备进行了研究。

In addition, the organobentonite has good solvent dilatability and gelation ability in the organic medium. Finally the preparation of organobentonite/epoxy nanocomposites shows that its properties were optimal, as the content of the organobentonite was about 1wt%. Compared with pure epoxy resin, the flexural strength rose 6%. Meanwhile the fundamental mechanism need to be studied further.

季铁型有机膨润土改性环氧树脂的初步研究表明，含lwt%的有机膨润土/环氧树脂纳米复合材料的抗拉力性能最好，比纯环氧树脂高了6%左右，具体的原因和一般性规律还有待于更加深入的研究和总结。

Catalysis of sulfuric acid has been investigated in the preparation of dibromoalkane by epoxy compound and aliphatic diol .

结果表明：浓硫酸的用量对环氧化合物以及脂肪二元醇合成二溴代烷的收率有很大的影响

The molar ratio of different metal ions within support, the preparation methods of supports and catalysts, and other factors had been studied. The activity of catalyst was evaluated by the synthesis experiments of diphenyl carbonate.

实验考察了载体金属离子的组成和配比、载体和催化剂的制备方法等因素对催化活性的影响，以苯酚氧化羰基化反应合成DPC的实验结果对催化活性进行了评价。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。