Flow-induced noise generation related to flow field in centrifugal pumps is especially important.

离心泵中，由流场产生的流动噪声尤其重要。

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Calibrated and deterministic noise for repeatable stress tests, and random noise generation provide all-in-one capability.

用于重复压力测试的标准化、确定性噪声及任意噪声发生可提供一体化性能。

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The noise generation and filters are performed by a microprocessor for which the input time constant of CTC can be varied to control the fading rate.

噪声的产生和滤波均由单板机实现。改变单板机CT C定时器的输入时间常数，就可直接调整模拟衰落信号的衰落速率。

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There are no plans to de-grunt top grunters it appears Sharapova and Azarenka's grunts will be grandfathered in but there's a push to squelch the noise at younger levels, and produce a quieter next generation of players.

WSJ: Jason Gay: Confessions of a Tennis Grunter