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...
There is a more radical solution that delivers us from modeless dialog maladies.还有一种更激进的方法可以解决非模态对话框的弊病.Work is the grand cure for all the maladies and miseries that ever beset mankind.工作就是医活人类所有顽疾和厄运的最宏效的药剂.Resentment, ...
Gun ownership by law-abiding people was not a problem.让守法的人持有枪械并不会惹麻烦。By and large, these people are peace-loving, law-abiding citizens.大体上，这些人都是热爱和平、遵纪守法的公民。Be disciplined and law - abiding instead of chaotic and lawles...
Scratch - cards and membership cards making easy - to - curettement, the local card printing and membership card making, special circumstances.刮刮乐制卡和会员卡制作易刮不兴, 局部制卡和会员卡制作, 不入格环境下需给.Her performance wasn't up to scrat...