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English definition of “echo sounder”

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echo sounder

noun [C] uk   us  
a piece of equipment, especially on a ship, that uses sound waves to discover water depth or the position of an object in the water
Translations of “echo sounder”
in Chinese (Traditional) (尤指船載)回音探測器…
in Chinese (Simplified) (尤指船载)回声探测器…
(Definition of echo sounder from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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