Three wind turbines
Schlüsselwörter
alternative,
blue,
clean,
cloud,
conservation,
consumption,
day,
ecology,
economy,
efficiency,
electricity,
energy,
environment,
equipment,
generator,
global,
green,
illustration,
industrial,
innovation,
landscape,
nature,
plant,
power,
propeller,
renewable,
resource,
rotation,
rotor,
saving,
sky,
spin,
sustainable,
technology,
thrift,
turbine,
turning,
vector,
vertical,
view,
wind
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