Are there any visible arc marks on uppersurfaces LPS rods?
避雷针的上部表面是否有可见的电弧放电痕迹？
2
The film on the uppersurfaces of the wings and the horizontal rear stabilisers is embedded with 12, 000 photovoltaic cells.
机翼上层和水平后方安定面上的薄层嵌有12万块光电池。
3
The idea is that solar Impulse will take off and fly under its own power using electricity from the 11, 628 solar cells covering the uppersurfaces of its wings and tailplane.