echo sounder
noun /ˈekəʊ saʊndə(r)/
/ˈekəʊ saʊndər/
- a device that measures the depth of the sea, or that finds objects underwater, by measuring how quickly sound waves are reflected
回声测深仪：一种通过测量声波反射速度来测量海深或在水下发现物体的设备
| 词汇 | echo sounder |
| 释义 | echo soundernoun /ˈekəʊ saʊndə(r)/ /ˈekəʊ saʊndər/
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