| 词汇 | echo sounder |
| 释义 | echo sounder noun [ C ] uk/ˈek.əʊ ˌsaʊn.dər/ us/ˈek.oʊ ˌsaʊn.dɚ/ （尤指船载）回声探测器 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 Compare: sonar |
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