planet wheel carrier

例句：

1. 1. The design of the planetary wheel carrier is crucial for the stability of the spacecraft's orbit.
   行星轮承载器的设计对航天器轨道的稳定性至关重要。
2. 2.The planetary wheel carrier plays a vital role in maintaining the balance of the spacecraft's gravitational field.
   行星轮承载器在保持航天器引力场平衡中起着至关重要的作用。
3. 3.The planetary wheel carrier is an essential component of the spacecraft's propulsion system.
   行星轮承载器是航天器推进系统的一个关键组成部分。