New technology adopted in gas fractionation unit is introduced,analysis of energy consumption and yields of major products such as propylene produced from revamped gas fractionation unit are made.是什么意思_New technology adopted in gas fractionation unit is introduced,analysis of energy consumption and yields of major products such as propylene produced from revamped gas fractionation unit are made.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句