translation.en: Every vehicle is equipped with an automatic payload and battery exchange mechanism, so these vehicles navigate to those ground stations, they dock, swap a battery automatically, and go out again.
translation.zh: 每架飞行器都配备了自动的 有效载荷和电池交换机能， 因此这些飞行器可以自主导航到这些地面站， 停靠、 自动换电池， 并再次飞出去。