orbital aperture

例句：

1. 1. The satellite orbits around the Earth at an altitude of 36,000 miles.
   这颗卫星在地球的轨道上以36,000英里的高度运行。
2. 2.The spacecraft's orbital aperture is crucial for its navigation system.
   航天器的轨道开口对于其导航系统至关重要。
3. 3.The engineer designed the spacecraft with an orbital aperture that would allow it to travel between planets.
   工程师设计了具有轨道开口的航天器，以便它可以在行星之间旅行。