In this paper the recent research development at home and abroad on the modifications of high denominator materials and its derivates used as RO membranes was reviewed and its study direction was put forward.是什么意思_In this paper the recent research development at home and abroad on the modifications of high denominator materials and its derivates used as RO membranes was reviewed and its study direction was put forward.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句