英文關鍵字
barrier
canal
cascade
channel
dam
descent
discharge
drain
drop
energy
engineering
fall
flood
flow
flowing
fluid
footage
force
industrial
level
log
pouring
power
river
total
video
water
waterfall
英文關鍵字
barrier
canal
cascade
channel
dam
descent
discharge
drain
drop
energy
engineering
fall
flood
flow
flowing
fluid
footage
force
industrial
level
log
pouring
power
river
total
video
water
waterfall