Energie und Umwelt
Schlüsselwörter
wind,
energy,
turbine,
force,
electricity,
windmill,
heaven,
generator,
option,
environment,
wind turbine,
renewable,
field,
nature,
countryside,
technology,
environmental,
windmill,
cloud,
cloudy,
stream,
dielectric,
pylon,
pylon,
high,
high voltage
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