- Thelongitudinalwavecannotexistnearthesurfaceofasolid,andthoseexistnearitareglidingirrotationalwaves.Itistheglidingirrotationalwavepair,notthelongitudinalwavebeamitselfthatexciteslongitudinalwaveinmudtogeneratesignal.Theglidinglongitudinalwavecontains...
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