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介绍了机械零部件P-S-N曲线的意义和用途及用实验方法确定机械零部件的P-S-N曲线的两个步骤。着重讨论了疲劳试验的两种重要方法。
The significance and purpose of the P-S-N curve of mechanical components and the two steps of experimentally determining P-S-N curves of mechanical components are introduced. Two important methods of fatigue testing are highlighted.