This paper introduces application of giant power fully digital DC adjusting speed system in four rolling mill of medium plate plant of Jinan Iron and Stell Group.是什么意思_This paper introduces application of giant power fully digital DC adjusting speed system in four rolling mill of medium plate plant of Jinan Iron and Stell Group.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句