For the case of hydrodynamic noise, in which the range of the frequency-thickness product of interest is relatively low, the symmetric zero-order mode dominates the noise radiation.
对于水动力噪声情况，感兴趣的频率厚度乘积相当低，这时零阶对称模式对噪声辐射起主要作用。
For the case of hydrodynamic noise, in which the range of the frequency-thickness product of interest is relatively low, the symmetric zero-order mode dominates the noise radiation.
对于水动力噪声情况，感兴趣的频率厚度乘积相当低，这时零阶对称模式对噪声辐射起主要作用。
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