以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
Dave was in a hurry to get back to work.戴夫急于回到工作岗位。Patrick often plays up when he knows I'm in a hurry.帕特里克常常明知我手忙脚乱还要调皮捣蛋。Eric left the barge in a hurry.埃里克匆忙离开了驳船。...
她试过很多伎俩去赢取男孩的青睐.She tried many ploys to get the boy interested in her.不要放过这赢取一百万元的机会.Don't pass up this chance to win a million dollars.我来是替他赢取胜利,好让他在我的心里获得平安.I came to win him his triumph so that hewill be at peace...