名词
中文翻译：零测地线
同义词：
['zero line', 'zero line of curvature']
例句：
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1.The zero geodesic is the shortest distance between two points on a surface.
零测地线是两个表面上两点之间的最短距离。
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2. In mathematics, the zero geodesic is used to define the origin of a coordinate system.
在数学中，零测地线用于定义坐标系统的原点。
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3. The zero geodesic is also known as the great circle, which is the shortest path between two points on a sphere.
零测地线也被称为大圆，它是球面上两点之间最短的路径。