查询词典 butyl

The Beckmann rearrangement of cyclohexanone oxime was effectively realized to prepare e-caprolactam by using phosphorous trichloride (PCl3) as catalyst in a two-phase system composed of 1-n-butyl-3- methylimidazolium tetrafluoroborate ([BF4]) ionic liquids and toluene.

在1丁基3甲基咪唑四氟硼酸盐([BF4])与甲苯组成的两相体系中，以三氯化磷(PCl3)为催化剂，实现了由环己酮肟制备己内酰胺的液相贝克曼重排反应，两相体系有利于反应控制和体系取热。

The only reference in the published literature to such a reaction was a note by Clark who reported-without experimental details-that benzaldehyde is converted to benzoyl chloride Indeed, in some cases,t-butyl hypochlorite has been known to effect substitution of hydrogen by chlorine.

在出版文学中仅有的参考这样一反作用was a指出经过克拉克，那苯醛存在在有些情形下的确使转而信仰苯酰氯化物在外面所报告的-实验details-的，t-丁基次氯酸盐已经被知道实现氢的代用在附近氯。

The feasibility of electrocarboxylation of benzyl chloride has been investigated at silver cathode in CO2-saturated room-temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) solution for the first time.

在饱和了CO2的室温离子液体中，首次在银电极上研究了苄基氯电羧化的可行性。

ABSTRACT:Objective To investigate the effect of calmodulin antagonist 0-(4-ethoxiyl-butyl)-berbamine on proliferation of human breast cancer cell MCF-7 and its possible mechanism.

目的 探讨钙调素拮抗剂O-4-乙氧基-丁基-小檗胺对人乳腺癌细胞系MCF-7生长的影响及其作用机制。

A novel label adhesive with good performance for labeling beer bottle was prepared by using acrylic acid,styrene, butyl acrylate as functional monomers grafted to polyvinyl alcohol by emulsion polymerization,neutralizing carboxyl with NaOH and ZnO.

通过乳液聚合把丙烯酸、苯乙烯、丙烯酸丁酯单体接枝到聚乙烯醇上，用ZnO和NaOH中和增稠，制备了一种综合性能优良的新型啤酒贴标粘合剂。

Paper tape, flexible metal corner tape, paper faced metal, fiberglass mesh tape, tissue tape, butyl tape, wall patch, PVC corner bead, solar energy water heater.

7E73 纸带，金属护角纸带，网格带，补墙板，圆护角，金属护角条，PVC护角条网，玻纤网格布，玻璃纤维壁布。

After a muliobjective searching by AT-0520 D electronic computer using orthogonal regression design, the optimum technological conditions including the principal factors which influence the chemical reactions have been found. The expected yield of butyl acrylate, the content of byproduct β ester and acid value are all identical with the experimental data.

对影响反应的主要因素，采用正交回归设计和用AT-0520D电子计算机对多目标进行搜索，得出优化工艺条件组合，经实验验证，丁酯收率、付产β酯含量、酸值的予测值都和实验值吻合，并经生产规模验证，得到满意结果。

Chloroacetic acid,chloromethyl ether,acetone,mphenylenediamine,butyl acetate,ethyl acetate,methylene chloride,ethylene dichloride,dioxane.

氯乙酸，氯甲醚，丙酮，间苯二胺，醋酸丁酯，醋酸乙酯，二氯甲烷，二氯乙烷，二氧六环。

According to the results of the former study in our laboratory, trans-1, 2-cyclohexanediol is produced with a lot of acids and water, for extraction of trans-1, 2-cyclohexanediol from the solution, ethyl acetate and butyl acetate were used as extraction reagents, the solubility data of the trans-1, 2-cyclohexanediol in corresponding mixed solvents of some sorts of acetates and water are needed.

根据本实验室前期研究结果可知，反式-1，2-环己二醇是在酸性和大量水存在的条件下得到的，为了把反式-1，2-环己二醇从反应液中萃取出来，本工艺所采用的萃取剂是乙酸乙酯和乙酸丁酯，需要获得反式-1，2-环己二醇在这些酯类与水混合溶剂中的溶解度数据，因而对反式-1，2-环己二醇进行相关固液相平衡的研究是非常迫切和必要的。

The reaction of sodium alkylcycloperitadienide with metal chlorides gave derivatives of bisdichlorides of titanium, zirconium and hafnium where alkyls were n-propyl and n-butyl.

本文报导烷基环戊二烯基钠与金属氯化物反应合成钛、锆和铪的双金属二氯化物以及通过卤素交换制备双钛的二氟化物的方法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。