agriculture
aqueduct
architecture
barrage
bridge
building
canal
channel
civil
cloud
concrete
construction
dam
drain
drainage
energy
engineering
environment
factory
flood
floodgate
flow
flowing
gate
hydroelectric
industrial
industry
infrastructure
management
mountain
nature
outdoor
overflow
plant
pollution
power
powerful
renewable
reservoir
runoff
sewage
sewer
sky
spillway
station
structure
transport
waste
water
waterway
定額
Drainage canal water bridge. Water management. Power of water. Concrete bridge structure. Infrastructure. Manmade aqueduct used to transport water for agriculture and hydroelectric power.の素材 [FY310136326276]
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