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以MB503型木工平刨床为例，探讨其空转状态下噪声源识别的基本原理和方法。实践证明，该方法识别结果准确，对机床的噪声控制具有较强的实用价值。
Taking MB503 wood planer as an example, the basic principle and method of noise source identification under idling condition are discussed. Practice has proved that the method has accurate identification results and strong practical value for machine noise control.