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单词 sonic depth finder
释义

WordReference Random House Unabridged Dictionary of American English © 2024
sonic depth find′er, 
  1. Nautical, Naval Termsa sonar instrument that uses echolocation to measure depths under water. Cf. Fathometer. 
  • 1925–30

Collins Concise English Dictionary © HarperCollins Publishers::
sonic depth finder n
  1. an instrument for detecting the depth of water or of a submerged object by means of sound waves; Fathometer
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更新时间:2024/9/21 3:29:05