英文關鍵字
barrage
bridge
brook
building
cascade
cascading
concrete
conservation
dam
drop
electric
electricity
energy
engineering
falls
flow
flowing
force
fresh
gate
generate
hydraulic
hydro
industrial
industry
lake
level
lock
manufacturing
motion
nature
pond
pool
power
reservoir
river
run
scenery
sluice
small
stream
technology
view
water
waterfall