中文说明：
利用小波包分解4种不同间隙的局部碰磨故障，可查看故障的频谱。
English Description：
The wavelet packet is used to decompose the local impact and wear faults with four different clearances, and the fault spectrum can be viewed
Wavelet packet decomposition of local rubbing faults with four different clearances
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中文说明：
利用小波包分解4种不同间隙的局部碰磨故障，可查看故障的频谱。
English Description：
The wavelet packet is used to decompose the local impact and wear faults with four different clearances, and the fault spectrum can be viewed