orbit modification

例句：

1. 1. The spacecraft's orbit was modified to improve its performance.
   飞船的轨道被修改以提高其性能。
2. 2.The astronauts had to make several orbit modifications during the mission.
   宇航员在任务期间不得不进行几次轨道调整。
3. 3. The new technology will allow for more precise orbit modifications.
   新技术将允许更精确的轨道调整。