结合所提出的两种方法，对带噪声的频变微弱振动信号进行了检测分析。
Combining two methods, it is detected and analyzed that the weak signal slowly frequency change accompanied by noise.
离心机主轴径向振动信号属微弱信号，混有较大的噪声和干扰。
The radial vibration signals of the centrifuge's spindle are faint, which intermingle with strong noise and disturbance.
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