采用新的管式反应器装置代替釜 式 反应器,将生产7-ADCA和7-ACA的副产物六甲基二硅醚有效地转化成了三甲基氯硅烷.Trimethylchlorosilane was prepared from hexamethyldisiloxane, by - product in producing 7 - ADCA and 7 - ACA.以三甲基硅醚和氯化氢气体为原料, 浓硫酸为催化剂合成了三甲基氯硅烷.Chlorotrimethylsi...
少数官员准备篡改规则。A minority of officers were prepared to bend the rules.规则要求样本必须装在两个水密容器中。The rules state that samples must be enclosed in two watertight containers.他们都遵守着那条约束他们所有人的默认规则——要守口如瓶。They obey the one unwritten rule ...
The tycoon is on the verge of bankruptcy.那名大亨濒临破产的边缘.The dead tycoon's sons will remain in their plush offices overseeing the death throes of the family empire.这位已故大亨的儿子们将坐在豪华的办公室里，目睹这个家族帝国崩溃前的痛苦挣扎。The high - salari...
A voter must necessarily be no younger than eighteen.选民必须在18岁以上.One voter in Brasilia summed up the mood — "Politicians have lost credibility," he complained.一位巴西利亚的选民将人们的心情一言概之——“政客们已无信誉可言”，他抱怨道。The election results wer...