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然后对各种振动信号分析方法进行比较，得到满意的效果。
And we get a satisfied result through comparing all kinds of vibration signal analysis methods.
振动信号分析是进行齿轮箱状态监测与故障诊断的重要手段。
Vibration signal analysis is widely used in the state monitoring and failure diagnosis of the gear and rolling bearing.
频谱细化技术和功率倒频谱是振动信号分析的两种重要辅助方法。
Spectrum zoom technique and power cepstrum are two important aided methods in vibration signal analysis.
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