Solar cells are being fixed and put on the roof of the house by technicians..
Palabras clave
instrument,
checking,
work,
person,
install,
repair,
global,
working,
green,
clean,
home,
industrial,
service,
sunset,
building,
eco,
renewable energy,
safety,
energy,
electrical,
voltage,
engineer,
technology,
technician,
electricity,
photovoltaic,
electric,
panel,
power,
installation,
ecology,
solar,
environmental,
sunlight,
sun,
installing,
system,
men at work,
maintenance,
environment,
alternative,
nature,
roof,
innovation,
man,
construction,
mobile phone,
industry,
rooftop
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