If the shape of tailrace pipe is changed, the pressure pulse can be removed so that the vibration of generating unit can be reduced.
如改变尾水管形状，可以消除涡带压力脉动，减小机组振动。
The vibration of generating unit, which is one of important parameters of analyzing generation unit's normal operation, is more paid attention to users.
机组振动是分析机组安全运行的重要参数之一，越来越多地受到用户的注意。
The vibration generating mechanism of a new type of mechanical transmission unit have been analyzed and revealed through theoretical analysis and vibration measurement on a test-rig.
通过对三环减速机环板动态受力过程的分析与振动试验，揭示了其振动发生根源。
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