機器
environmental
aeolian
aerodynamic
aerogenerator
alternative
backlight
backlit
biosphere
climate change
color
dawn
ecological
ecology
effect
electric
electricity
energetic
energy
engine
engineering
environment
generation
generators
global warming
image
industrial
photographic
power
production
renewable
shadow
silhouette
sky
sun
sundown
sunlight
sunrise
sunset
sunshine
sustainable
system
technique
technology
turbines
wind
wind farm
windfarm
windmills