英文關鍵字
abandoned
agriculture
alternative
background
blue
clean
conservation
dark
drive
ecological
ecology
efficiency
electric
electrical
electricity
energy
energybusiness
environment
environmental
equipment
farm
field
generate
generation
generator
green
hightech
industrial
industry
landscape
modern
nature
outdoors
plant
pollution
power
production
propeller
renewable
rotate
rotation
side
silhouette
sky
technology
turbine
wheel
wind
windmill
windy