英文關鍵字
alternative
and
austria
beams
blue
burgenland
clean
cloud
clouds
conservation
ecosystem
electric
electricity
energy
environment
environmental
europe
field
fuel
generation
generator
green
industrial
industry
innovation
landscape
landscaped
lower
mill
nature
power
propeller
propellers
pylon
renewable
romantic
rotation
silhouette
sky
strength
sun
sunlight
sunset
sustainable
technology
turbine
turbines
wind
windmill
windmills