英文關鍵字
alternative
architecture
back
background
backgrounds
cell
clean
concept
ecological
electric
electrical
electricity
energy
engineering
environment
environmental
equipment
footage
generator
global
icon
icons
industry
light
modern
panel
panels
photovoltaic
power
roof
saving
shine
solar
sun
sunlight
sunny
sunshine
supply
sustainable
system
technology
through
under
underneath
video