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采用数理统计和数值分析的方法，探讨了机械设备故障诊断中控制值的确定与劣化趋势的预测问题，此外，还结合矿山机械的具体实例介绍了此方法的应用。
The methods of mathematical statistics and numerical analysis are used to discuss the prediction of the control value and the trend of deterioration in the fault diagnosis of mechanical equipment. In addition, the application of this method is also introduced with the concrete examples of mining machinery.