英文關鍵字
dam
water
river
nature
landscape
electricity
flow
energy
flood
technology
environment
engineering
flowing
power
station
structure
motion
gate
hydro
waterfall
cascade
construction
fall
irrigation
outdoors
control
falling
force
generator
stream
industrial
industry
hydroelectric
overflow
small
building
open
down
effect
factory
machinery
splashing
pouring
filled
hydraulic