polar coordinate-paper

例句：

1. 1.The position of the satellite can be determined by measuring its distance from the Earth's surface and its angle relative to the equator.
   卫星的位置可以通过测量它与地球表面的距离和相对于赤道的角度来确定。
2. 2. In a polar coordinate system, the x-axis represents the distance from the origin, and the y-axis represents theangle from the positive x-axis.
   在极坐标系中，x轴表示从原点的距离，y轴表示从正x轴的角度。
3. 3. The polar coordinate system is commonly used in physics to describe the motion of objects in space.
   极坐标系统在物理学中常用于描述物体在空间的运动。