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Sound wave
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Related Product Searches:Sound wave,High Quality Sound wave,Sound wave HM-XZ-030
Sound wave
Related Product Searches:Sound wave,High Quality Sound wave,Sound wave HM-XZ-030
Sound wave is invisible.When we emit audio singal through a closed end of cylindrical tubular barrels, we can obsever sound wave's activities clearly. And this kind of sound wave is called standing wave, also known as snow wave .
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