英文關鍵字
5d
annicut
axle
bridge
cars
closeup
clouds
concrete
dam
development
dike
drop
electric
energy
environment
evening
flow
hydro
hydroelectric
industry
land
landscape
lantern
lapse
main
manmade
nature
open
outdoors
overflow
plant
pool
power
river
rural
russia
space
spillway
station
structure
time
timelapse
togliatti
tolyatti
water
waterfall
waterpower