building
chemical
chimney
combustible
complex
construction
dioxide
distillery
economy
electricity
energy
engineer
environment
environmental
facility
factory
fuel
gas
gasoline
global
globalwarming
heavy
industrial
industrialplant
industry
modern
oil
petrochemical
pipe
pipeline
piping
plant
pollution
production
refinery
science
station
steam
steel
structure
system
technology
toxicsubstance
tube
turbine
warming
waste