A tsunami isn't a tidal wave but a series of waves-or wave train-in which the first isn't necessarily the most dangerous.
海啸不是一波浪潮，而是一波接一波的巨浪——其中首轮海浪不一定最危险。
Light waves are synchronized, the beam is a wave train.
光波是同步的，整个光束是一个波列。
An acoustic full wave train is received when borehole is filled with water.
在井中充水时接收到一组全波列声波。
By employing a method of "extrapolation of multiple points" measurement of the S-wave train, we can reasonably raise the accuracy.
利用S波波列的多点测量外推方法有效地提高了测量精度。
In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern…
第二句话对解释进行总的说明：“在实地作业中，通过将一系列波列源，诸如小规模炸药爆炸，排列成一个网格模式，从而将地下层面标绘出来。” 接下来是“地震反射法”的详细过程。
In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern…
第二句话对解释进行总的说明：“在实地作业中，通过将一系列波列源，诸如小规模炸药爆炸，排列成一个网格模式，从而将地下层面标绘出来。” 接下来是“地震反射法”的详细过程。
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