geocentric coordinates

例句：

1. 1. The satellite's position was determined using geocentric coordinates.
   卫星的位置是通过地心坐标确定的。
2. 2. These coordinates are used to calculate the distance between two points on the Earth's surface.
   这些坐标用于计算地球表面两点之间的距离。
3. 3. The map is based on geocentric coordinates, which means it represents the Earth's surface in three dimensions.
   这张地图基于地心坐标，这意味着它以三维的方式表示地球的表面。