The idea is to have enough balloons so as one balloon floats out of your area, there's another balloon ready to float into place, handing off the internet connection, just like your phone hands off between cell towers as you drive down the freeway.
这个想法基于足够多的气球 这样的话当一个气球 飞出了你的区域， 另一个气球恰好进入， 交接网络连接， 就像你在高速公路上开车时 电话信号在不同基站交接一样。