由脂肪醇、甲胺一步催化法制取烷基二甲基胺.Alkyl dimethylamine is made from fatly alcohol and dimethyla - mine by one stage catalysis.二手甲胺回收装置和工艺, 成套甲胺装置和工艺可以在世界各地重新安装.Used Methylamines Plant and Process, complete Methylamines Plant and Proce...
图书馆是细小类目的大综合体.Libraries are great complexes of tiny items.而对于这三位吉拉帝说,要他们三个的综合体.Karstens and Igawa started yesterday against the Pirates and Yankees minor - leaguers, respectively.通过这一段的阅读你应该记住一点那就是性病是一系列症状的综合体.Keep in mi...