Bakelite is a well - known thermosetting material and it has a wide variety of uses.电木就是人们都熟悉的热固性材料,具有多种用途.The big black Bakelite phone rang at half past ten.十点半的时候,外壳用胶木做的电话响了.Bakelite lamp holder, what is bakelite , wh...
An improved method for synthesis of clindamycin acetonide was introduced.介绍了制备克林霉素磷酸酯中间体丙酮叉的工艺改进方法.OBJECTIVE : To the assay triamcinolone acetonide acetate in Quwan solution.目的: 测定“去万溶液”中醋酸曲安奈德的含量.To prepare triamcinolon...
Aim To synthesize gastrodin via biotransformation of microorganism using p - hydroxybenzaldehyde as substrate.目的以对羟基苯甲醛为底物,通过微生物的转化作用生物合成天麻素.Eperythrozoon is a microorganism that parasitizes red blood cells , blood plasm...
He has invented innumerable excuses, told endless lies.他编造了数不清的借口和谎话。He kept waffling and finding excuses not to close the deal.他一直举棋不定，找出种种理由不予成交。It's easer for people to make excuses so we don't have to chang...