The horizontal decanter centrifuge is a dual rotor system with small rotating speed difference, of which unbalanced vibration is a "beat" signal.

卧螺离心机是一种具有微小速差的双转子系统，它的不平衡振动信号是一个拍振。

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There is inevitable unbalance in the dual-rotor system of the aero-engine, the beat vibration will occur to engine when two rotors are operating at approximately the same speed.

在双转子航空发动机中，由于转子系统不可避免地存在不平衡量，当两个转子的转速比较接近时，发动机会出现拍振现象，拍振将引起振动强度过大问题。

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The Canadian company managed to pull off a dual beat.

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Even the chorus joins in the action, at one point taking on the dual roles of farmworker and police who beat them during a demonstration.

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