英汉词典

1.Catalytic synthesis of AMS cyclic dimer 1, 3, 3-trimethyl-1-phenyl indane.

甲基苯乙烯环状二聚体1,3,3 -三甲基- 1 -苯基茚满的催化合成方法。

2.The experiments proved that the changes of materials adding order, the ratio of raw materials and the loading way of trimethyl amine were advantageous to improve the yield and purity of the product.

实验结果表明，改变投料顺序、投料比以及三甲胺的投料方式有利于提高产品的收率及纯度。

3.The synthesizing of dimethyl methyl phosphonic acid ester with trimethyl phosphite was catalyzed by methyl alkylbenzenesulfonate.

报道了以烷基苯磺酸甲酯催化异构亚磷酸三甲酯合成甲基膦酸二甲酯。

4.Method for preparing 2, 3, 5-trimethyl hydroquinone diester.

一种制备2,3,5 -三甲基氢醌二酯的方法。

5.In this study trimethyl amine was reclaimed from amination wastewater by using 001 hydrogenous strong-acid ion exchange resin. The recovery ratio is more than 90%.

本文采用001氢型强酸性阳离子交换树脂从胺化废水中回收三甲胺，回收率大于90%。

6.This paper describes the analytical method using gas -chromatography for systems of temperature swing extraction with n-dodecane, 1, 3.5-trimethyl benzene and tri-ethylene glycol.

本文描述了变温革取法用三甘醇分离正十二烷和1,3,5—三甲苯时样品的气相色谱分析方法。