| 释义 |
echo sounder
释义
回声测深仪：一种用声波测定水体深度或水下物体深度的仪器。
例句
1·Use echo sounder frequently when passing shallow water.
通过浅水域时，要常用回声仪测深。
2·A device used underwater to produce pulses of sound, as for an echo sounder .
特殊设计的专用降噪消声装置的采用，极大的抑制了机械噪声。
3·Inspection installation and water tightness transducer of echo sounder on berth.
测深仪换能器船台安装和水密性检查。
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