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...
我已经做好了接受外科手术的准备,于是就直接进入了手术室。I was already prepped for surgery so I went straight into theatre.她从手术室出来了,身体状况良好。She is back from theatre and her condition is comfortable.她在手术室里已经两个小时了.She was in the operating theatre for t...
杂货商以往都必须知道如何混合茶叶.A grocer used to need to know how to blend tea.厨师和杂货商为蛋价计较个没完.The cook and the grocer haggled over the price of eggs.那个杂货商总是要高价.That grocer always overcharges....