海词手机词典

The synthsized six kinds of quat ernary ammo nium salts show good phase transfer catalysis and certain effcet of asymmetric i nduction in nucleophilic addition of benzaldehyde with chloroform.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌