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The invention relates to a preparation method of vinylene carbonate, which comprises halogenated ethylene carbonate and dehydrohalogenation agent which are subject to contact reaction. The dehydrohalogenation agent is ammonia with a purity of not less than 99.9 percent.

一种碳酸亚乙烯酯的制备方法，该方法包括将一卤代碳酸乙烯酯与脱卤化氢剂进行接触反应，其中，所述脱卤化氢剂为纯度不低于99.9％的氨气。

Adopt SN and ASA2 be antistatic agent, studied an impact of two kinds antistat agent over polyethylene foam material volume electric resistance..

采用十八烷基二甲基羟乙基季铵硝酸盐和硬酯酸单甘油脂混合物作为抗静电剂，研究了两种抗静电剂对聚乙烯泡沫材料体积电阻的影响。

This separation must lead to the agent problem, namely the problem how to incent and supervise agent, which also is the crucial problem of the research of corporate governance.

现代企业制度是建立在所有权与经营权分离基础之上，所有权与经营权分离必然会产生代理人问题，即如何激励与监督代理人的问题，这也是公司治理研究的核心问题。

MORs of PP/wood fiber, PS/fiber, and PE/fiber composites with coupling agent added were raised by 18.4%, 37.1%, and 42%, respectively, compared to those without coupling agent.

结果表明，添加耦联剂的纤维／聚丙烯、纤维／聚乙烯和纤维／聚苯乙烯复合材料的弯曲弹性模量分别比未添加耦联剂的复合材料的弹性模量增加了18.4%，37.1%，42%。

Rubber aging inhibitor 4020 chemical name: N-(1,3-DIMETHYLBUTYL-N'-PHENYL-P-PHENYLENEDIAMINE, like anti-aging agent 4010NA, is of para-phenylene diamine ursol anti-aging agent.

橡胶防老剂4020，化学名称：N－（1，3－二甲基丁基）－N－苯基对苯二胺，与防老剂4010NA同属对苯二胺类防老剂。

51 There is also another answer which might be given to the objection, viz. that the end which the inordinate agent intends is an end only in a qualified sense. But this is not a happy solution, because the efficiency of the inferior cause is a pure and simple case of efficiency. In other words, it does not effect something simply because it is moved as does a stick, which has no end of its own because it is not an agent on its own, but rather resembles a more immediate effect.

2.51 对这一反驳还可以给出另外一个回答，即精神紊乱的行为者意图的目的仅仅只在严格的意义上才称之为目的，但这并不是一个令人愉快的解决方案，因为次等原因的动力因是动力因的一个纯粹而直接的情形，换句话说，它没有影响某物，仅仅是因为它就像一根棍子一样运动，它没有自身的目的，因为它不是针对自身的行动者，而仅仅是一些更为直接的结果的汇集。

Methods After treated with a specific demethylating agent,Aza and acetylating agent, TSA, the status of 5'CpC island methylation of ING1b gene in HT29 human colon cancer cell line was analyzed using methylation specific polymerase chain reaction,and the level of histone acetylation was analyzed by chromatin immunoprecipitation,and reverse transcription polymerase chain reactionwas used to examine ING1b mRNA expression.

应用特异性DNA甲基转移酶抑制剂5-氮-2'-脱氧胞苷（5-Aza-2'-dc，以下简称Aza）及组蛋白去乙酰化酶抑制剂曲古抑菌素A作用人结肠癌细胞株HT29后，用甲基化特异性PCR检测该ING1b基因核心启动子区域CpG岛甲基化情况，用染色质免疫沉淀检测其乙酰化组蛋白绑定的DNA情况，并用逆转录聚合酶链反应检测ING1bmRNA表达。

Our raw material purchases from Chinese Guangxi, do not use insecticide, our product was complete of the method nicety manufacturing of the physics, our craft adsorbs with the resin, ion exchange, absolutely didn't use organic melting agent, therefore, our product has no organic melting agent to remain, is a safety dependable of, meet the request of the food and drugs.

我们的原材料采购来自中国广西，千万不要使用杀虫剂，我们的产品已经完成了该方法的精密制造的物理，我们的船与吸附树脂，离子交换，绝对不使用有机溶剂，因此，我们的产品已没有有机融化剂，以保持，是一个安全可靠的，符合要求的食品和药品。

Through the research of acid, we found that the role of acid in the process of preparing SZ/SiO2 is peptizator. And the research of crosslinking agent shows that the function of crosslinking agent is to prevent the nanoparticles from agglomerating.

通过将体系中的硫酸换作其它的酸的研究，我们认为酸在制备过程中的作用是促进ZrO2胶溶，而对交联剂的研究表明交联剂的作用是防止ZrO2纳米粒子团聚。

The main factors that influence tablet hardness and disintegration time are wetting agent ethanol, agglutinating agent polyvinylpyrrolidone and tablet pressure.

确定了制片压力、润湿剂无水乙醇和粘合剂聚乙烯吡咯烷酮为影响崩解时间和片剂硬度的主要影响因素。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。