亚胺基杂环丙烷季铵盐的阳离子,一定是按协同反应的方式开环的.The aziridinium ions must all be opened by a concerted process.阳离子表面活性剂通常为季铵盐类.Cationics are usually quaternary ammomium salts.反 离子通常是钠, 钾和铵.The usual counter - ions are sodium, potassium an...
About 60,000 subscribers have special adapters to receive and decode the signals.大约6万用户拥有特殊的适配器来接收和转换信号。This category includes video display adapters , dot matrix printers, and laser printers.这类包括视频显示卡, 点阵式打印机和激光打印机.Do n...
It was a marvellous afternoon with a huge turnout of people.那是个美妙的下午,出席人数众多。A high turnout was reported at the polling booths.来自投票站的消息称投票率很高。Election officials said the turnout of voters was low.选举官员称选民的投票率很低。...
MPs may lack the necessary expertise to scrutinize legislation effectively.议员可能缺乏严格审查立法所必备的专业知识。Haig was immediately impressed by Charteris's expertise and by his lucid explanation of the work.查特里斯的专业知识和他对作品浅显易懂的阐释立...
Please send me your account or a detailed or itemize account.请把您的帐簿(或明细帐)送来.Please send me your account or a detailed or an itemize account.请寄我帐单或明细帐单.Our september sale increase 560 thousand over August which itemize he...