以下为句子列表：
英文: There is no rolling bearing and bolt in the mill chamber, therefore, the bearing and sealing elements will not wear out easily, and the bolts will not loose to make damage to the equipment.
中文: 因磨腔内无滚动轴承、无螺钉，所以不存在轴承及其密封件易损的问题，不存在螺钉易松动而毁坏机器的问题。
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