Aerial view of treatment facilities in close urban development. Engineering infrastructure in the mountains.
Schlüsselwörter
up high,
aerial,
aircraft,
biology,
biomass,
bird,
circle,
city,
city landscape,
clean,
construction,
dirty,
ecology,
engineering,
environment,
facility,
factory,
flight,
flow,
fly,
garbage,
industrial,
industry,
landscape,
outdoors,
plane,
plant,
processing,
purification,
purified,
purity,
reusing,
recycling,
reservoir,
sanitary,
sewage,
sludge,
smell,
tank,
technology,
treatment,
urban,
valva,
view,
waste,
water
Deutsch
