Results The average recovery of Dracaena major components reached 80% after precipitated by acetonitrile first and then extracted by ethyl acetate.是什么意思_Results The average recovery of Dracaena major components reached 80% after precipitated by acetonitrile first and then extracted by ethyl acetate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句