A little apart from the surf ace, the longitudinal wave beam may exist and propagate parallel to the surface, yet has to connect with its corresponding gliding irrotational waves.
离开固体表面稍远的区域，可以有平行于表面传播的纵波声束存在，但是需要与相应的滑行集散波相互衔接。
It is the gliding irrotational wave pair, not the longitudinal wave beam itself that excites longitudinal wave in mud to generate signal.
激发出泥浆纵波而使接收器获得讯号的是滑行集散波，纵波声束并不直接激发泥浆纵波。
The gliding longitudinal wave contains three parts, longitudinal wave beam, negative exponential gliding ivro-tational wave and positive exponential gliding irrotational wave.
滑行纵波系由纵波声束、负指数滑行集散波和正指数滑行集散波三种成份所组成。
The longitudinal wave cannot exist near the surface of a solid, and those exist near it are gliding irrotational waves.
纵波不能在固体表面存在，在固体表面存在的是相应的滑行集散波。
Yet the advancing longitudinal wave beam expands continuously towards the surface, and produces new gliding irrotational waves with it.
但前进中的纵波声束不断向表面扩散而产生出新生的滑行集散波。
The energy loss of the gliding irrotational wave pair is made up by the longitudinal wave beam.
滑行集散波由于激发泥浆纵波而受到的损耗，要由纵波声束给以补充。
Surfing is a sport of gliding toward the shore on a breaking wave.
冲浪是一种破浪向海岸滑行的运动。
Surfing is a sport of gliding toward the shore on a breaking wave.
冲浪是一种破浪向海岸滑行的运动。
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