The progress of technological remoulding of butadiene extraction with dimethyl formamide(DMF)as solvent by GPB method in Beijing Yanshan Petrochemical Corporation was reviewed.是什么意思_The progress of technological remoulding of butadiene extraction with dimethyl formamide(DMF)as solvent by GPB method in Beijing Yanshan Petrochemical Corporation was reviewed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句