african american
alternative
alternative energy
analysis
cells
check
detector
ecology
electrician
electricity
electronic
energy
engineer
equipment
glasses
green
heat
helmet
inspection
maintenance
man
measuring
outdoors
panel
people
photovoltaic
power
renewable
renewable energy
scan
sensor
service
solar
solar panel
standing
technician
temperature
test
thermal imager
tools
uniform
worker
定額
African american engineer in uniform, safety helmet and glasses using thermal imager for measuring temperature heat of solar panels. Man working on maintenance equipment on modern station.の素材 [FY310185010260]
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