归纳了对苯二胺的各种制备方法,并讨论了其工业化的优劣.The synthesis ofp - Phenylenediamine was summarized and its route of industrialisation was discussed.简要介绍了对 苯二胺 的用途和新工艺法合成对 苯二胺 的前景.Finally, application ofp - phenylenediame and its new craft p...
那里每年秋天有2,000头灰色小海豹出生。Two thousand grey seal pups are born there every autumn.为了获得海豹皮而用棍棒打死幼海豹是不道德的。Clubbing baby seals to death for their pelts is wrong.每年对海豹的选择性宰杀the annual seal cull...
Objective To observe efficacy of rhubarb and mirabilite on treating fatty fluidization in celiotomy incision.目的观察大黄、芒硝外敷腹部伤口脂肪液化的疗效.Make an infusion by boiling and simmering the rhubarb and camomile together.将大黄和甘菊一起煮沸再用...
美名胜过金腰带.A good name is better than a golden girdle.美名难得而易失.A good name is sooner lost than won.我们全心全意敬奉上帝，竭尽所能颂扬他的美名。We are all committed to serving the Lord and glorifying His name in the best way we know....
In order to calcine calcium carbonate fines, the technique of high - temperature pelletization has successfully been used.为了煅烧碳酸钙细粉, 已经成功地应用了高温成球技术.In leaching stage the zinc oxide is separated from the calcine s.在浸出阶段氧化...