Sonar (nonfiction): Revision history

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2 May 2020

  • curprev 04:1004:10, 2 May 2020‎ Admin talk contribs‎ 1,520 bytes +1,520‎ Created page with "'''Sonar''' ('''so'''und '''na'''vigation '''r'''anging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate w..."
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