英文關鍵字
abstract
architecture
authority
background
barrage
beautiful
blue
built
cascade
concrete
construction
dam
dambulla
electricity
energy
engineering
environment
fall
flow
flowing
flows
fluid
foam
footage
generation
generator
gush
hydro
hydroelectric
industrial
industry
irrigation
kandalama
lake
landmark
landscape
lanka
national
natural
nature
outdoor
overflow
power
produce
reservoir
river
rock
roque
scenic
sky
spillways
sri
stone
streaming
structure
summer
technology
travel
video
wall
water
waterfall
weir
white