Flight of a gray quadrocopter against a blue sky.
Palabras clave
camera,
photo,
building,
city,
cloud,
control,
helicopter,
digital,
unmanned,
flight,
float,
fly,
contraption,
guidance,
innovation,
modern,
propeller,
remote,
robot,
rotor,
sky,
small,
spy,
surveillance,
technology,
transport,
vehicle
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