File:Motte-Picquet-tugged-sonar.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as Sound Navigation And Ranging, Sound Navigation and Ranging, SoNaR, SoNAR, SONAR, ASDIC, echo sounding
음파에 의해 수중목표의 방위 및 거리를 알아내는 장비
Sonar is a technology that uses sound waves to detect and locate objects underwater, as demonstrated by systems like those installed on military frigates and used to create images of shipwrecks on the ocean floor. It matters because it enables vessels and navies to identify submarines, mines, and other underwater objects that would otherwise be invisible to human sight.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).