名词
中文翻译：距离线
同义词：
['distancescale', 'distance ruler']
例句：
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1. The distance line on the map indicatesthe location of the city center.
地图上的这条距离线表示城市中心的位置。
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2. Thedistance line is used to measure the distancebetween two points on a map.
距离线用于测量地图上两点之间的距离。
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3. The distanceline was drawn to help us estimate thetime it would take to travel from onepoint to another.
距离线被绘制出来，以帮助我们估计从一点到另一点所需的时间。