Footage of a ventilation system cell in darkness
Schlüsselwörter
ventilation,
system,
mobile phone,
darkness,
black,
ventilator,
fan,
fast,
high speed,
light,
rotation,
revolving,
round,
circle,
propeller,
blade,
cooling,
airing,
blowing,
heat,
cold,
regulation,
temperature,
equipment,
device,
technology,
modern,
working,
air,
animation,
conditioner,
conditioning,
cool,
electric,
factory,
industrial,
industry,
power,
rotate,
rotating,
turbine,
ventilated,
ventilate,
ceiling
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