In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Polyurethane demulsifier for crude oil were prepared from polypropylene glycol, xylene, toluenediiso - cyanate...
Lead is more solvent in acidic water.铅在酸性水中更易溶解。We must cut back on expenditure in order to remain solvent.我们应减少开支,以备急用.Gasoline is a solvent liquid which removes grease spots.汽油是一种能去掉油污的有溶解力的液体....
Widen one's field of vision.开眼界,拓宽视野.I do think, sir, we would be advised to widen our inquiries.长官, 我确实认为我们最好扩大调查工作.Other circumstances also helped to widen the distance between the group.其他的情况也助长加宽各种人民之间的距离....