An example for water - formic acid - acetic acid separation is given work.文中给出了水─ — 甲酸─ — 乙酸系统分离的示例.One advisable way is to synthesize NFM acylating morpholine with formic acid as acylating agent.较可取的是以甲酸为酰化剂,吗啉酰化初期强放热反应...
It's difficult to cram everything into a tight schedule.日程紧，很难把所有事情都安排进去。There was such a cram in the church.教堂里拥挤得要命." Cram then if you want." 随你去抽筋吧....
这位绅士穿着以苏格兰粗呢制成的衣服.The gentleman was dressed in Scottish tweeds.粗呢外套看起来与她下身穿的黑裙子不很协调.The duffel coat looked incongruous with the black dress she wore underneath.台岸 – 外覆粗呢的橡胶边岸.Cushion - rubber surrounds covered with baize...
She muttered something unintelligible and lapsed into silence.她不知嘟囔了几句什么后就不再开口。'God knows what's happening in that madman's mind,' she muttered...她咕哝着：“天知道那个疯子在想什么。”He muttered something ( to the sale...
He abused the Admiral in the grossest terms.他用不堪入耳的话辱骂那位海军上将。In my own college was no echo, but an original source of the grossest disturbance.在我们学院里,这闹声不是一般的喧闹, 而是引起最粗俗骚乱的源泉....