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从信号平均法与残余信号法在故障识别中所起的作用以及各自的数学处理过程等方面对两者进行了对比分析，最后通过实例说明了本文提出的残余信号法在故障识别中所起的特殊作用及其实用有效性
From the signal averaging method and the residual signal method in the fault identification role and their respective mathematical processing and so on the two aspects are compared and analyzed. Finally, an example is given to illustrate the residual signal method proposed in this paper in the fault identification Special effects and their usefulness