OBJECTIVE To improve the synthetic procedure of antipsychotic drug aripip - azole.目的改进抗精神病药阿立哌唑的合成工艺.Objective : To develop the method for the determination of 4 - methyl imid azole in caramel.目的: 建立 4- 甲基咪唑的快速定量测定方法.Azo...
Methane and propane are alkanes.甲烷和丙烷是烷烃。The general uses of alkanes may be divided into three categories.烷的一般用途可分为三个方面.The straight - chain alkanes exacerbate the problem of engine " knock ".直链烷烃使机器的 “ 爆震 ” 问题更加严重....