燃やす
air
building
chemical
chimney
complex
electricity
energy
engineering
environment
environmental
factory
fuel
gas
gasoline
global
heat
heavy
high
hot
industrial
industry
kyoto
manufacturing
modern
oil
petrochemical
petrol
petroleum
pipe
pollution
power
production
pump
refinery
sky
smog
smoke
station
steam
steel
structure
sunset
supply
technology
tower
tube
urban
valve
warming