名词
中文翻译：被动声纳同义词
同义词：
['passive sonar', 'passive sonar system']
例句：
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1. The ship's sonar system detected the underwater object.
这艘船的声纳系统探测到了水下物体。
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2. The sonar operator carefully monitored the data from the submarine.
声纳操作员仔细监控了潜艇的数据。
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3. The sonar was used to map out the ocean floor for exploration.
声纳被用来绘制海洋底部以进行探索。