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...
消费者对于真正的异国风味越来越情有独钟。Consumers are increasingly interested in the authentically exotic tastes.他经常和朋友们到一些具有异国情调的地方公款游玩。He took frequent junkets with friends to exotic locales.他说英语带有浓重的异国口音。He spoke heavily accented English...