機器
浜辺
coast
coastline
concept
construction
discharge
drain
drainage
ecology
effluent
engineering
environment
equipment
flow
flowing
gush
hose
industrial
industry
infrastructure
lake
line
metal
natural
nature
ocean
outdoor
outdoors
pipe
pipeline
plastic
plumbing
pollute
pollution
pumping
repair
rock
scenic
sea
sewage
shore
sluice
stone
stream
trickle
tube
waste
water
white