英语词汇“echo sounder”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	echo sounder
释义	echo sounder n. A device for measuring depth of water by sending pressure waves down from the surface and recording the time until the echo returns from the bottom.
随便看	rpm rps RQ R & R RR RRB -rrhagia -rrhea -rrhoea rRNA RS RSA r selection r-selection RSFSR RSI RSV RSVP Rt RT Rt. RTA Rte. Rt. Hon. RTI

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