The voltage in the signal varies in direct proportion to the sound wave.

信号中的电压按声波比例变化。

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The frequency of the sound wave is controlled by the feedback signal of the system.

声光晶体由行波场驱动，声场频率则由系统的反馈讯号控制。

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The plane wave error is always negative windage, when the sound wave is the cycle function of space and time.

当声波是空间位置和时间的周期函数时，平面波误差项永远是一负偏差项。

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The sound wave they create, at a low 79 hertz, travels around the concrete box and gets concentrated toward a sensor on the windshield.

FORBES: Magazine Article

Examine the sound-wave form of the album on a computer screen, and you will see a solid bar, free of any dynamic spikes or divots.

NEWYORKER: Show Runners

No-one who heard it will ever forget the tidal wave of sound welling from the depths of the crowd that greeted the news that Mr Obama had won - it rippled back through the crowd that stretched far into the darkness of the night and seemed to hang and echo between the downtown skyscrapers.

BBC: Obama campaign blazes to victory