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运用程控锁相技术，在风机基础固有频率附近的转速下对离心通风机进行现场平衡，可以明显提高风机整机的平衡精度，且现场平衡过程简单，具有可操作性。
The use of program-controlled phase-locked technology, centrifugal fan in the vicinity of the basic speed fan base on-site balance, can significantly improve the balance of wind turbine accuracy, and the site balance process is simple, with maneuverability.