Each grinding roller is composed of fixed rock arms, frame and hydraulic pressure system, which is the drive unit.
每一个磨辊，它都是由固定的摇臂、安装摇臂的支架，以及液压系统组成了粉磨的动力单元。
Each grinding roller is composed of fixed rock arms, frame and hydraulic pressure system, which is the drive unit.
每一个磨辊，它都是由固定的摇臂、安装摇臂的支架，以及液压系统组成了粉磨的动力单元。
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