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1. sonar
声纳
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2.ultrasound sonar
超声波声纳
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3. short-range sonar
短程声纳
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1. The ship used a short-range sonar to detect an underwater object.
这艘船使用了短程声纳来探测水下物体。
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2.The sonar system detected the submarine's location with high accuracy.
声纳系统以极高的精度探测到了潜艇的位置。
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3.The sonar operator carefully monitored the data from the sonar device.
声纳操作员仔细监控着声纳设备的数据。