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本文根据机械系统的使用与维修特点，阐述了机械技术状态的变化及其故障形成的一般过程，分析了机械故障的基本特性，指出了机械故障研究中应考虑的问题，对开展机械故障、维修与可靠性的研究具有一定的指导意义。
According to the characteristics of the use and maintenance of the mechanical system, this paper expounds the change of the state of the mechanical technology and the general process of its formation, analyzes the basic characteristics of the mechanical failure, points out the problems that should be considered in the study of the mechanical failure, And the reliability of the study has a certain significance.