By using ethylene oxide and ethanol as reactants,2-ethoxyethanol is prepared over MgO/Al_2O_3 composite catalysts in a continuous membrane reactor.是什么意思_By using ethylene oxide and ethanol as reactants,2-ethoxyethanol is prepared over MgO/Al_2O_3 composite catalysts in a continuous membrane reactor.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句