A possible mechanism is discussed, the nucleophilio aromatic substitution S_NAr and S_(RN)Ar (SET) may occur simultaneously.是什么意思_A possible mechanism is discussed, the nucleophilio aromatic substitution S_NAr and S_(RN)Ar (SET) may occur simultaneously.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句