例如，有饮酒习惯的受试者，其耳声发射就已减弱，不同的药物也会改变耳声发射的振幅，耳道感染或者耳垢堆积也一样。

In subjects that have been drinking alcohol, for example, emissions are deadened. And different drugs alter the amplitude of OAEs, as do ear infections or wax build-up.

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看看不同谐波振幅的变化如何改变波。

See how changing the amplitudes of different harmonics changes the waves.

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还分析了不同开度情况下非线性约束对自振周期和振幅的影响。

The effect of nonlinear binding force on period and amplitude are also analyzed.

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And you can think about that if you think about a standing wave, for example, where you can have amplitude at many different values of x, so an amplitude at many different distances, but you also have areas where there is a amplitude.

你们可以想象一下驻波，在不同ｘ处,可以有不同的振幅，在不同的距离有不同的振幅，但在某些地方振幅等于０．

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