A method was established for determining two intermediates in synthesis of imidacloprid,2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC.是什么意思_A method was established for determining two intermediates in synthesis of imidacloprid,2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句