Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
Therefore, GBRS have a useful selective effect with respect to the frequency and propagation direction of relic HFGWs.
因此，高斯束谐振系统对高频遗迹引力波的频率和传播方向具有良好的选择效应。
Phenomenon of the change in velocity of propagation of monochromatic radiations in a medium as a function of the frequency of these radiations.
在介质中传播的单色光改变其传输速度的现象，并由该辐射的频率所决定的。
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