In the epoxidation, chloroform and t butanol gave the best results.在环己烯环氧化反应中, 以氯仿和叔丁醇为溶剂时,环氧化反应的结果最好.The definilion of kauri - butanol value and its determination method is described.文章叙述了“溶剂汽油”一词的由来,K. B.值的定义及测定方法.The ...
我们生活得相当节俭。We lived fairly frugally.他们生活节俭,只吃燕麦粥和小扁豆.They lived frugally off a diet of porridge and lentils.除了抽烟、喝酒, 他是个生活节俭的人.Except for smoking and drinking, he is a thrifty man....
They say hydrogen paroxide peroxide or carbime carbamide peroxide may also help.他们说过氧化氢或过氧化脲可能有作用.They say hydrogen peroxide or carbamide peroxide may also help.他们还认为过氧化氢和过氧尿素也有所帮助.Objective : To observe the therapeutic ...