The dispersion is due to the inhomogeneity of medium, which will lead the energy of sound to deviate from its direction of propagation.
另一部分则是由于声波在不均匀介质中的声散射把能量散射到其他方向，而使原来传播方向上的声波能量减弱。
The dispersion is due to the inhomogeneity of medium, which will lead the energy of sound to deviate from its direction of propagation.
另一部分则是由于声波在不均匀介质中的声散射把能量散射到其他方向，而使原来传播方向上的声波能量减弱。
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