英文關鍵字
overflowing
outlet
valve
concrete
circular
tank
rural
uttarakhand
water
harvesting
construction
structure
reservoir
supply
storage
overflow
area
village
agriculture
sustainable
development
conservation
irrigation
rainwater
collection
harvest
environment
resource
management
dam
infrastructure
efficiency
engineering
project
rainfall
maintenance
monsoon
floods
famine
scarcity
government
projects
municipality
canal
pump
pipeline
cinematic
video
slow
motion