聚丙烯腈不溶于丙烯腈.Polyacrylonitrile is insoluble in acrylonitrile.方法采用大鼠呼吸道静吸入染毒方法研究丙烯腈对大鼠血液的毒性.Method Rats were made to inhale acrylonitrile in static enclosure cabinet.有机氰化物, 如乙腈 、 丙烯腈 、 正丁腈等.Organic cyanide, like methyl cyan...
He was a special investigator for the FBI.他是联邦调查局的特别调查员.Daniels and Franklin concurred in an investigator's suggestion that the police be commended.丹尼尔斯和富兰克林一致同意一位调查人员的建议，即警方应该受到赞扬。Finally the Compliance division pu...
有时候要到达谷底，才会慢慢变好。Sometimes things have to fall apart to make way for better things.你一定注意到他有时候显得特别疲惫。You must have noticed how tired he sometimes looks.“嗯，”他承认道，“我有时候说话的确有点吐字不清。”"Well," he conceded, "I do sometimes mumble ...