本文采用自动数据采集及FFT技术研究应力波的弥散与衰减特性。
Dispersion and attenuation characteristics of stress waves were studied by means of the automatic data collection and FFT technique.
本文研究结果还表明，地面水平振动信号也可以用来分析R波的弥散曲线和地基波速检测。
Further studies show that the horizontal vibration signal at the ground surface could also be used to get the R-wave dispersion curve.
当然这种波是弥散的。
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