機器
alternative
blade
blue
clean
cycle
development
dynamic
ecological
ecology
electricity
energy
environment
environmental
evening
farm
fuel
generate
generator
green
highway
industrial
industry
landscape
mechanical
metal
motion
nature
park
power
propeller
renewable
road
rotate
rotating
rotation
sign
sky
spin
sunset
sustainability
sustainable
technology
tower
turbine
turn
watts
white
wind
windmill