african american
alternative energy
box
cable
cells
checking
control
ecology
electrician
electricity
energy
engineer
environmental
equipment
examining
glasses
green
hardhat
helmet
inspection
installation
instruments
maintenance
man
outdoors
panel
people
photovoltaic
power
production
renewable
renewable energy
repairing
repairman
resistance
scheme
service
solar
solar panel
station
sunlight
technician
tools
uniform
worker
定額
Competent technician in orange helmet and grey overalls standing near switchgear and connection solar station to common network. Production of alternative energy and saving of environment.の素材 [FY310185010460]
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