英文關鍵字
barrier
cascade
climate
conservation
control
creek
dam
environment
environmental
fall
flood
flow
flowing
head
hydro
irrigation
low
motion
natural
nature
river
slow
spillway
splash
stream
water
waterfall
weir
英文關鍵字
barrier
cascade
climate
conservation
control
creek
dam
environment
environmental
fall
flood
flow
flowing
head
hydro
irrigation
low
motion
natural
nature
river
slow
spillway
splash
stream
water
waterfall
weir