The phase of writing that is actually most important is revision.实际上写作过程中最重要的阶段是修改。a thoroughgoing revision of the text对文本认真仔细的校订I have got the revision of his dictionary.我得到了他编的词典的修订本....
The degraded starch and acrylamide - butyl acrylate copolymer have been produced.本文制得了异相酸降解淀粉和丙烯酰胺 — 丙烯酸丁酯共聚物.Synthesis of n - butyl lactate is catalyzed by phosphotungstic acid and aluminium phosphotungstate.以磷钨酸和磷钨酸铝为催...