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....
水塘已经干涸,里面都是欧洲蕨和芦苇。The pool had dried up and was full of bracken and reeds.欧洲蕨在晴朗的秋天正变为暗金色.The bracken was turning to the dusky gold of a fine autumn.欧洲蕨林被这种蕨覆盖的地带.An area overgrown with this fern....
Its story-within-a-story method of narration is confusing.其故事套故事的叙事方法让人觉得很糊涂。He has recorded the narration for the production.他录制了这部作品的解说词。The richness of his novel comes from his narration of it.他小说的丰富多采得益于他的叙述....