機器
environmental
built
business
carbon
chemical
chemistry
chimney
complex
construction
economy
energy
engine
engineering
environment
facility
factory
flange
fuel
gas
gasoline
greenpeace
industrial
industry
iron
kerosene
metal
nuts
oil
petrochemical
petroleum
petrolium
pipe
pipeline
pipes
plant
pollutant
pollution
power
production
refinery
smokestack
stack
station
steam
structure
supply
tanks
technology
tower