以二乙胺 、 二硫化碳、双氧水为原料,在硫酸的中和作用下合成戒酒硫, 研究了各反应条件的影响.Disculfiram was synthesized from diethyl amine, carbon disulfide and peroxide, and the reaction condition was studied....
The boy was busied about some mechanical contrivance.这孩子正在忙着做什么手工.music with a tendency towards contrivance and lack of substance.矫揉造作而缺乏实质性内容的音乐Such a machine is beyond the contrivance of ordinary people.这种机器是一般人发明不出来的....
他是由海军上将精心挑选出来担任这项工作的。He was hand-picked for this job by the Admiral.发动机舱里的水由一条软管抽走。Water in the engine compartment is sucked away by a hose.鲍勃死于由他的生活方式引起的心脏病突发。Bob died of a heart attack, brought on by his lifestyle....
'The whole incident was whitewashed,' he claimed yesterday.“整个事件都已经被粉饰过了，”他昨日声称。It had clean whitewashed walls, a table and a char.屋里有白白的墙, 还有条长桌,一把椅子....a town of picturesque whitewashed cottages.一座座小屋粉刷得洁白而漂亮...