The vibrating spectrum analysis was done to centrifugal multi-level impeller blower, and found that the impeller has dynamic unbalance, so that the vibration of blower is to exceed the standard.
对离心式多级叶轮风机进行振动频谱分析，认为叶轮存在动不平衡，造成风机振动超标。
The vibrating spectrum analysis was done to centrifugal multi-level impeller blower, and found that the impeller has dynamic unbalance, so that the vibration of blower is to exceed the standard.
对离心式多级叶轮风机进行振动频谱分析，认为叶轮存在动不平衡，造成风机振动超标。
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