着陆导航系统引导指示改成2个圆圈，它们必须重合才满足下滑道和方向定位的要求。
ILS guidance indication is changed to 2 circles that must be inside each other to be on the glide slope and localizer.
Broen noeysund机场是世界上首个利用基于卫星的着陆导航系统进行客机飞行的机场。
Broennoeysund is the first airport in the world to use satellite-based landing guidance for passenger flights.
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