燃やす
chemical
chimney
combustible
company
complex
economy
electricity
energy
engineering
environment
facility
factory
fuel
gas
global
grey
heat
high
hot
industrial
industry
manufactur
oil
old
pipeline
plant
pollution
power
production
refinery
science
sheet
sky
smoking
station
steam
steel
structure
supply
system
technology
tube
turbine
valve
ventilation
waste
work