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分析了磨机螺栓断裂的主要原因，提出了解决办法，并介绍了衬板螺栓的预紧力矩的控制方法，以及应注意的问题。
The main reason of bolt breakage in mill was analyzed, the solution was put forward, the control method of pretensioning moment of lining bolt and the problem to be noticed were introduced.