“铵”造句

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 and ammonium.

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