polar coordinate method

例句：

1. 1. The polar coordinate method is used to determine the position of a point in space.
   极坐标法用于确定空间中点的坐标位置。
2. 2. In this method, we use the distance between two points on the Earth's surface as our measure of distance.
   在这个方法中，我们使用地球表面两点之间的距离作为我们测量距离的尺度。
3. 3. This approach is particularly useful for mapping large areas, such as oceans or continents.
   这种方法特别适用于地图大范围区域，如海洋或大陆。