方法: 用浑浊法测定体系的分层曲线,自动电位滴定仪测定平衡两相中醋酸的含量,通过绘制出的三元相图,筛选萃取剂. Methods: Using the turbidity method and analyzing the acetic acid concentration of both phases at equilibrium.
He says he'll have no problem authenticating the stamp...他说自己可以对这枚邮票进行鉴定。The machine can stamp out hundreds of components in an hour.这台机器每小时可冲压数百件机件.The United Nations has issued a stamp in honour of Captain Alfred ...
目的:评价异 丁基 壳聚糖作为生物材料的安全性.Objective To evaluate the bio compatibility of isobutyl - chitosan as a material.使用二异丁基-二甲氧基硅烷, DQ催化剂的氢调敏感性更好.With di - iso - butyl dimethoxy DIBS, DQ catalyst was more sensitive to hydrogen regul...
Generally his ideas were expressed in sententious phrase, spoken in low voice .他发表意见总是用柔和的声音，简短的句子。Generally his ideas were expressed in brief sententious phrase, spoken in low voice.他发表意见总是用柔和的声音,简短的句子.Too often the sig...
凡事应该用脑筋好好想一想.We should always use our brains and think everything over carefully.肯用脑筋的人永远胜过别人.A man who can think will always gain an advantage over others....
他握着她的手表示问候，关切地问她一切是否都好。He took her hand in greeting and asked solicitously how everything was.她的问候中带着一丝傲慢。There was a tinge of condescension in her greeting.她要我转达对你的问候。She asked to be remembered to you....