The phenyl ofp n propylbenzoic acid could be reduced by sodium alkoxide.醇钠可以还原对丙基苯甲酸中的苯环.Poly ( L - lactide ) ( PLLA ) was synthesized by ring - opening polymerization of L - lactide using cyclic tin alkoxide compound as...
The angry audience shouted the speaker down.愤怒的听众大声喊使讲话者闭口不语。to heckle a speaker诘问演讲者Angry crowds converged on the speaker.愤怒的群众向讲演者拥去.He was such a clever speaker that he always ate up the opposition.他是个很精明的演说家, 总能击败对手。...
Glycosylation is an effective method of improving functional property of protein.糖基化反应是改善蛋白质功能特性的一种有效的方法.Alkylpolyglycosides a new sort of nonionic surfactant , was synthesized by trans - glycosylation.用转糖苷法合成了新型表面活性剂 ——...
In Huang - huai and Yangtze River reaches the maximum decreases of DTR are in summer and spring.在黄淮和长江流域,以夏季和春季DTR下降最为显著.South Yangtze, by using Classic Craft , annotates your modern life well.江南木坊, 用古典艺术诠释您的现代人生.The thi...
Office of Finance says they accept as collateral only securities that have an ascertainable market value.FHLB财务部表示,他们只接受具有可确定市场价值的抵押品.Most people here cannot borrow from banks because they lack collateral.由于拿不出东西作为抵押，这里大...