ASL Sign Language Dictionary

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sonar

How to sign: 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 anti-submarine detection investigat

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Similiar / Same: echo sounder, asdic

Categories: measuring instrument, measuring system, measuring device, navigational instrument

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