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A physical character of phononic crystals is the existence of phononic band gaps in which the sound and elastic waves are all forbidden.
基于这一原理，声子晶体具有广泛的应用前景，例如新型的隔声降噪材料、弹性波滤波器、波导等等。
A physical character of phononic crystals is the existence of phononic band gaps in which the sound and elastic waves are all forbidden.
基于这一原理，声子晶体具有广泛的应用前景，例如新型的隔声降噪材料、弹性波滤波器、波导等等。
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