The results show that in order to reduce oxygen content of steel it is key to control roughing slag amount and to improve flux condition of LF and VD.是什么意思_The results show that in order to reduce oxygen content of steel it is key to control roughing slag amount and to improve flux condition of LF and VD.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句