左下から見た水管橋・水道橋
Keywords
aqueduct,
hookah,
piping,
arched,
infrastructure,
oil,
technology,
piping,
pipeline,
plante,
metal,
maintenance,
lifeline,
risk,
sanitation,
stream,
factory,
industry,
colossal,
architecture,
construction,
restoration,
facility,
sunny,
bridge,
water,
checking,
industry,
sky,
management,
duct,
look up,
pipeline,
blue skies