機器
abandoned
brownfield
city
danger
electricity
energy
engineering
environment
factory
fuel
gas
gasworks
global
green
hazard
heavy
industrial
industry
iron
lake
lawn
machinery
manufacturing
metal
old
outdoor
park
pipe
pipeline
plant
pollution
power
production
red
refinery
rust
rusty
seattle
sky
smoke
steel
storage
technology
toxic
view
warming
washington
work
works