查询词典 butyl

The invention relates to a silver polyethylene perchloride external anticorrosive coating and the making method thereof, adding polyethylene perchloride resin into mixed solvent of dimethylbenzene and butyl acetate, then adding in epoxy resin, chlorinated paraffin, epoxy chloropropane, polyacrylate copolymer solution, polymethyl alkyl siloxane solution, polyamide wax, and aluminum silver pulp, blending and grinding to make it.

本发明涉及一种银色高氯化聚乙烯外防腐涂料及制造方法，是将高氯化聚乙烯树脂加入二甲苯和醋酸丁酯的混合溶剂中，再加入环氧树脂、氯化石蜡、环氧氯丙烷、聚丙烯酸酯共聚体溶液、聚甲基烷基硅氧烷溶液、聚酰胺蜡、铝银浆经混合、搅拌、研磨制成银色高氯化聚乙烯外防腐涂料，可用于储罐、化工设备、钢架、桥梁、集装箱的外防腐蚀。

Phase transfer catalyst;Third liquid phase;Solvent effect;Sodium phenolate;Tetrabutylammonium bromide;Butyl bromide

中文关键字相转移触媒；第三液相；溶剂效应；酚化钠；溴化四丁基铵；正溴丁烷

The effects of solvents and salts on the formation of a third liquid phase, distribution of catalyst, reaction mechanism and reaction rate in the reaction between n-butyl bromide and sodium phenolate with tetrabutylammonium bromide as a phase transfer catalyst were investigated.

中文摘要本文系针对以溴化四丁基铵为相间转移触媒催化正溴丁烷与酚化钠之反应，研究溶剂种类及盐类与碱类之添加量对形成第三液相、触媒分布、反应机构及反应速率之影响，被测试之溶剂包括氯苯、甲苯与正己烷，而在盐类与碱类效应的研究中，则测试溴化钠与氢氧化钠。

In this condition the di-n-butyl phthalate was synthesized.

结果 邻苯二甲酸二正丁酯产率可达95%。

Bromobutane was synthesized from potassium bromide and n-butyl alcohol by adding concentrated sulfuric acid in water. Various affecting factors were investigated.

以溴化钾、正丁醇为反应原料，水为溶剂，滴加浓硫酸合成溴代正丁烷。

The title anti-fogging coating was prepared from film-forming substance such as UV curing of n-butyl methacrylate,β-hydroxy ethyl acrylate,acrylamide and sodium propenyl alkyl ether hydroxyl sulfonate,and proper solvents, crosslinker s,photoinitiators and additives.

以光敏丙烯酸酯低聚物、甲基丙烯酸丁酯、丙烯酸-β-羟乙酯、丙烯酰胺及丙烯基烷醚羟磺酸钠为主要成膜物质，再配以适量的溶剂、交联剂、光敏剂及各种助剂制成UV固化防雾涂料。

Under optimized conditions, yield of n-butyl propionate can he over 80.0%.

在较佳条件下，丙酸丁酯酯化率可达80.0%以上。

gallium sulfate is an excellent catalyst for the synthesis of n-butyl propionate.

结论硫酸镓是合成丙酸正丁酯的良好催化剂。

Gingko leaf and its extractive is microwave-aided fast hydrolyzed in ethanol, propyl alcohol, butyl alcohol, acetone and other organic solvent as digest with certain amount of phosphoric acid, sulfuric acid or hydrochloric acid aqua added.

本方法以银杏叶及其提取物为原料，以乙醇、正丙醇、正丁醇及其丙酮等有机溶剂加入一定量的磷酸、硫酸、盐酸水溶液作为水解液，经微波辅助快速水解。

The Company produces purified Zhong propyl butyl-carbinol and ester product which totally occupies 80% of the international and domestic market share.

公司生产的精制仲辛醇及其酯类产品占国际国内80%的市场份额。

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。