Threshold rattling speed not only depends upon the frequency and amplitude of the errors of a gear pair, but also time-varying meshing stiffness and their combination frequency.

齿面误差对拍击门槛转速的影响不仅与自身的变化频率、幅值大小有关，更重要的是与时变频率及其组合频率有关。

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Data are compressed by setting an amplitude threshold value that results in decrement of overall computation time.

通过一个设定的振幅门槛值对输入地震数据作压缩，进而减少总的计算时间。

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Under condition of continuous darkness, cryophase duration, thermoperiodic response threshold and thermoperiodic amplitude play important roles in the determination of diapause in insects.

在全暗条件下，温周期本身通过低温持续期、温周期反应阈值、温周期幅度决定昆虫的滞育发生。

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