英语翻译Wave speed in a mediumThe speed of a mechanical wave is constant in a given ,medium .The speed depends only on the properties of that medium .If the frequency of a wave in a given medium is changed ,then the wavelength is changed .Figure

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英语翻译Wave speed in a mediumThe speed of a mechanical wave is constant in a given ,medium .The speed depends only on the properties of that medium .If the frequency of a wave in a given medium is changed ,then the wavelength is changed .Figure
英语翻译
Wave speed in a medium
The speed of a mechanical wave is constant in a given ,medium .The speed depends only on the properties of that medium .If the frequency of a wave in a given medium is changed ,then the wavelength is changed .Figure 15-7 shows two waves produced at different times in the same medium.The wavelengths and the frequencies of the waves are different .

英语翻译Wave speed in a mediumThe speed of a mechanical wave is constant in a given ,medium .The speed depends only on the properties of that medium .If the frequency of a wave in a given medium is changed ,then the wavelength is changed .Figure
介质中的波
在给定的介质中机械波的速度是恒定的,而波速取决于该介质的特性.如果在某一设定介质中波的频率发生改变,则此波的波长亦随之改变.图15-7显示了在同一介质中在不同时间的两个波,它们的频率和波长各不相同.

波在媒介中的传播速度
机械波在指定的媒介中的传播速度是常量。这个速度只取决于媒介的性质。如果波在指定媒介中的传播频率变化了，那么博得长度也随之变化。图表15-7显示的是在不同时里间，同一个媒介中产生的两个波。这两个波的波长和频率是不一样的。...

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波在媒介中的传播速度
机械波在指定的媒介中的传播速度是常量。这个速度只取决于媒介的性质。如果波在指定媒介中的传播频率变化了，那么博得长度也随之变化。图表15-7显示的是在不同时里间，同一个媒介中产生的两个波。这两个波的波长和频率是不一样的。

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