The ratio of the work roll diameter to the thickness of the strip D/h is larger than 8250; the ratio of the width of the strip to its thickness B/h is larger than 75000, thus reaching the optimal level of the same kind of mills.是什么意思_The ratio of the work roll diameter to the thickness of the strip D/h is larger than 8250; the ratio of the width of the strip to its thickness B/h is larger than 75000, thus reaching the optimal level of the same kind of mills.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句