Aming the synthetic methods of DMAP,the methad for preration of DMAP from pyridine and thiony chloride was studied.是什么意思_Aming the synthetic methods of DMAP,the methad for preration of DMAP from pyridine and thiony chloride was studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句