振动状态监测时，传感器采集的信号是各机械设备信号和环境噪声的混合信号。
For monitoring vibration, the signals acquired from sensors are the mixture of vibration signal of machines and the environmental noise.
振动状态监测时，传感器采集的信号是各机械设备信号和环境噪声的混合信号。
For monitoring vibration, the signals acquired from sensors are the mixture of vibration signal of machines and the environmental noise.
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