甲基

The method can avoid the use of toxic substances of chloromethyl ether, etc. during the preparation process of methyl chloride polystyrene resin, and also improves the polysubstitution in chloromethylation reaction.

该方法既可避免在氯甲基聚苯乙烯树脂制备过程中使用氯甲醚之类的有毒物质，又改善了氯甲基化反应中的多取代。

In our country, the acetone is mainly used to produce solvent, acetone cyanide alcohol / methyl methacrylate, methyl isobutyl ketone, bisphenol A, medicines and rubber additives.

国内丙酮主要用于溶剂、丙酮氰醇/甲基丙烯酸甲酯、甲基异丁基酮、双酚A、医药以及橡胶助剂等。

Objective To synthesize polymethyl methacrylate by using methyl methacrylate as the starting material and K2S2O8 as an initiator.

目的 以甲基丙烯酸甲酯为原料，过硫酸钾为引发剂制备聚甲基丙烯酸甲酯。

The reaction of methyl bromide with methylamine to give dimethylammonium bromide is a typical SN2 reaction that shows second-order kinetics.

答：甲基溴与甲胺反应得到二甲基溴胺是一个典型的SN2反应，是动力学二级反应。

In addition, Dnmt2 also displays weak DNA methyltransferase catalytic activity, but newly founded function is to methylate cytosine 38 in the anticodon loop of tRNA.

此外，Dnmt2也具有弱的DNA甲基转移酶活性，近年来发现它可以甲基化tRNAAsp反密码子环处38C。

Hydrolysis of completely methylated cellulose gives a high yield of 2,3,6-tri-O-methyl-x-glucose.

完全甲基化的纤维素水解后，得到高产率的2，3，6-三-O-甲基-x-葡萄糖。

One gene was methylated in 12 of HCC(30%). Two genes were methylated in 5 of HCC(12.5%).

CHFR基因在癌组织和癌旁组织的甲基化率分别为52.5%和27.5%，癌组织中的甲基化率高于癌旁组织(P.05)。

In the study of methylation of APC promoter region by MSP, we found that APC promoter was methylated.

甲基专一聚合酵素链锁反应的结果则显示病人的APC基因有被甲基化情形。

Currently, we are developing a more global methodology for fishing out tissue- and developmental stage-specific methylated sites.

现在，我们更进一步发展出更能广泛地在基因组中寻找甲基化片段以期待能够找出更多的组织特异性和不同时其的甲基化片段。

In this study, we found that β-catenin, c-JUN, c-myc and GSK3β might be involved in squamous metaplasia of airway epithelium induced by methylcholanthrene, vitamin A deficiency or cigarette smoking by investigating the rat model of squamous metaplasia.

本项目通过维生素A缺乏、吸烟及气管内注入甲基胆蒽复制体外气道上皮鳞化动物模型，发现β-连环素、c-JUN、c-myc 及GSK3β可能介导了甲基胆蒽、VitA 缺乏与吸烟所致的大鼠支气管上皮鳞状化生。

My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.

我的第一篇文章为屏幕力量杂志，在对这天是Jackie Chan 正式杂志，是香港actioner Gen X 警察的DVD 回顾，担任主角Nicholas Tse 和丹尼尔吴。

His lips grazed hirs, Now what are you going to do?

他的唇使吃草了 hirs，现在你将要做什麼？