business
chemical
chemistry
chimney
column
compartment
container
cracking
crude
distribution
ecology
electric
electricity
energy
engineer
engineering
environment
equipment
factory
flammable
fossil
fuel
gas
gasoline
industrial
industry
liquid
modern
office
oil
petrochemical
petroleum
pipe
pipeline
pipework
pollution
power
processing
production
puration
pylon
refinery
refining
runion
seedling
station
steam
steel
storage
structure
team
technology
terminal
tower
transportation
warehouse