If you do it the other way, it becomes a stylus tip and in another way, it becomes a laser pointer.
如果你以另一种方式转动它，它就变成一支触控笔，再换一种方式转动，它就变成一支激光笔。
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Users can control one of the sensors to manipulate its camera and laser rangefinder with a touch screen and stylus while an automated control flies the UAV, writes Richard Whittle of Aviation Week.