名词
中文翻译：回声测距设备
同义词：
['echo sounder', 'echo sounding equipment']
例句：
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1.The echo-sounding gear is used to measure the distance between two points on the ground.
回声测距设备用于测量地面上两点之间的距离。
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2.The echo-sounding gear was used to detect any potential hazards in the area.
回声测距设备被用来探测该地区的潜在危险。
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3. The echo-sounding gear helped us to determine the exact location of the target.
回声测距设备帮助我们确定了目标的确切位置。