It presented how the water cooling rollers kept tension and constant speed in RQ segment when they moved cross-ly,so as to make the steel band operate smoothly.是什么意思_It presented how the water cooling rollers kept tension and constant speed in RQ segment when they moved cross-ly,so as to make the steel band operate smoothly.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句