orbital tracking

例句：

1. 1. The satellite's orbital tracking system is highly accurate.
   卫星的轨道跟踪系统非常准确。
2. 2. The spacecraft was orbiting the planet at a high altitude.
   宇宙飞船在高海拔轨道上绕行星飞行。
3. 3. The astronaut used his tracking device to follow the spacecraft's trajectory.
   宇航员使用他的跟踪设备来跟踪宇宙飞船的轨迹。