alternative
battery
borehole
boy
child
class
construction
derrick
drilling
ecological
energy
engineer
environment
extraction
field
forest
fuel
gas
guy
helmet
industry
kid
little
male
mechanic
oil
outdoors
panel
petroleum
photovoltaic
pipe
portrait
preschool
production
pump
pump jack
rig
road
rocking
rod
sky
solar
station
thumb up
uniform
well
worker
working
workwear
定額
Portrait of little male kid in yellow helmet keeping one solar battery in front himself with showing thumb up. Young boy illustrating alternative fotovoltaic ecoenergy conception.の素材 [FY310179326220]
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