cmn: 聲納

Information
has URI	http://lexvo.org/id/term/cmn/%E8%81%B2%E7%B4%8D
character	Character U+8072
character	Character U+7D0D

Meaning
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means	(noun) a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee" sonar, echo sounder, asdic