Abstract: This paper specifies the meaningfulness and measurement method of rotating machinery alignment and points out the main deviation factors of dial indicator alignment and its control method.

摘要：简述了旋转机械对中的意义和测量方法，指出了百分表对中法的主要误差因素及其控制方法。

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This paper specifies the meaningfulness and measurement method of rotating machinery alignment and points out the main deviation factors of dial indicator alignment and its control method.

简述了旋转机械对中的意义和测量方法，指出了百分表对中法的主要误差因素及其控制方法。

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The deviation of rotating speed from the integral of transient power is very close to the actual value.

由暂态功率积分得到转速差，结果与实际值十分接近。

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