This paper introduced a improved process to synthesize pendimethalin by nitration,O-alkylation and condensation from3,4-xylenol.This process avoided the formation of the toxic nitroso compounds.是什么意思_This paper introduced a improved process to synthesize pendimethalin by nitration,O-alkylation and condensation from3,4-xylenol.This process avoided the formation of the toxic nitroso compounds.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句