The production methods of N, N - dimethylaniline including liquid - phase and gas - phase method are introduced.介绍了N, N- 二甲基苯胺的两种生产方法 —— 液相法和气相法,综述了N, N-二甲基苯胺国内外生产工艺进展.A HPLC method with electrochemical detector for dete...
这位一文不名的作家向范妮求爱成功,和她结了婚。The penniless author successfully wooed and married Fanny.她从没想到他会在那里向她求爱.She never expected him to make love to her there.那姑娘拒绝他的求爱后,他垂头丧气.He lost his spirits after the girl rejected his love....