名词
中文翻译：回声深度声纳同义词
同义词：
['echo sounder', 'sonar']
例句：
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1. The echo depth sounder was used to detect underwater objects.
回声深度声纳用于探测水下物体。
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2. The sonar system is capable of detecting objects at a range of up to 500 meters.
声纳系统能够探测到距离可达500米范围内的物体。
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3. The echo depth sounder was used to map the ocean floor in this area.
回声深度声纳被用来绘制这片海域的海底地形图。