名词
中文翻译：Unknown
同义词：
['rangefinder', 'rangefinder', 'range finder']
例句：
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1. The range calibrator is used to measure the distance between two points on the map.
测距仪用于测量地图上两点之间的距离。
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2. The range calibrator was used to check the accuracy of the new radar system.
使用测距仪来检查新雷达系统的准确度。
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3. The range calibrator was used to adjust the focus of the camera lens.
使用测距仪来调整相机镜头的焦点。