The compound instrument of oil emulsion is development.The structure and function are introduced,and its effect applied in 20 Rolling Mill is also analyzed in this paper.是什么意思_The compound instrument of oil emulsion is development.The structure and function are introduced,and its effect applied in 20 Rolling Mill is also analyzed in this paper.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句