英文關鍵字
alternative
battery
blue
cells
change
clean
collector
day
direction
eco
ecological
ecology
efficiency
efficient
electric
electricity
energy
environment
environmental
equipment
follow
generation
generator
grass
green
industry
innovation
lapse
meadow
modern
nature
panel
park
photovoltaic
power
production
renewable
resources
scene
sky
solar
station
sun
sunlight
sunny
supply
sustainable
technology
time
timelapse