本次初步会议的目标是澄清这些问题。The aim of this initial meeting is to clarify the issues.这只是初步的想法,并非成形的提议。It was an embryo idea rather than a fully worked proposal.这本书基本上会让那些不熟悉该学科的人对其有个初步了解。The book is essentially a taster for those u...
Dibromo neopentyl glycol was prepared from pentaerythritol and hydrobromic acid.由季戊醇、氢溴酸制备了二溴新戊二醇.In organic bromide turn thing production line, it is usually by - product large quantity hydrobromic acid.在有机溴化物的生产过程中, 往往...