Chlorization - hydrolysis, electro oxidation and a method using p - nitro - toluene as starting material were described mainly. 重点介绍了氯化水解法 、 电化学氧化法及对硝基甲苯法.
Her mouth stiffening, she could not elaborate.她嘴巴僵直, 无法细说下去.No genius, not a bad guy, but the attacks are hurting and stiffening him.不是天才, 人也不坏, 但是四面八方的攻击伤了他的感情,使他横下了心.The replicas are made by using a thin film of fusibl...
As the rubber droplets lose the acetone solvent, they become tacky and agglomerate.当橡胶滴失去丙酮溶液后, 变成粘的,聚集态的.After some initial problems, acetone was successfully produced in quantity...解决了最初的一些问题之后，终于成功地制造出了大量丙酮。Outlined s...
Objective : To identify whether Radix Bupleuri ( Bupleurum chinense ) was fumed with sulfur.目的: 鉴别市售柴胡是否用硫黄熏制.Results: The three primers can effectively identify the genuineness of Bupleurum chinense.结果: 3种引物能有效地鉴别北柴胡样品的...