Sonar

来自Big Physics
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google

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1940s: from so(und) na(vigation and) r(anging), on the pattern of radar .


Ety img sonar.png

wiktionary

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From SONAR, acronym of sound navigation and ranging. Coined by American scientist Frederick Vinton Hunt in the 1940s.


etymonline

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sonar (n.)

apparatus for detection underwater, 1946, from first letters of "sound navigation ranging," on pattern of radar.

取自“https://www.bigphysics.org/index.php?title=Sonar&oldid=30686”