In this paper, the working principle of a new method for turning of belieal and ring grooves of rolls for twining wire rope in an excavator or hoistor.是什么意思_In this paper, the working principle of a new method for turning of belieal and ring grooves of rolls for twining wire rope in an excavator or hoistor.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句