alternative
background
business
businessman
cell
construction
eco
ecology
electric
electricity
energy
engineer
engineering
environment
equipment
generator
hand
helmet
industrial
industry
installation
male
man
men
modern
nature
panel
person
photovoltaic
power
power plant
professional
renewable
safety
solar
solar energy
solar panel
station
sun
sunlight
system
team
teamwork
technician
technology
texture
voltage
woman
work
worker
定額
The solar farm(solar panel) with two engineers walk to check the operation of the system, Alternative energy to conserve the world's energy, Photovoltaic module idea for clean energy production.の素材 [FY310208715674]
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