Results:average recovering ratio is 100.3% of methylene chloride and 99.9% of dimethyl acetylamide and 99.4% of glacial acetic acid.是什么意思_Results:average recovering ratio is 100.3% of methylene chloride and 99.9% of dimethyl acetylamide and 99.4% of glacial acetic acid.在线翻译_英语_读音_用法_例句