英文關鍵字
alternative
blade
blue
cloud
conservation
development
ecology
efficiency
electric
electricity
energy
environment
environmental
farm
field
generate
generation
generator
green
industrial
industry
innovation
landscape
metal
mill
nature
power
production
propeller
renewable
rotate
rotation
silhouette
sky
sunrise
sunset
sustainable
technology
turbine
watts
white
wind
windmill
windturbine