機器
environmental
building
built
business
carbon
chemical
chemistry
chimney
complex
construction
diesel
duct
ecology
economy
energy
engine
engineering
environment
equipment
facility
factory
flange
fuel
fuel oil
gas
gasoline
greenpeace
heavy
high
industrial
industry
installation
iron
kerosene
lighting
machinery
manufacturing
metal
nuts
oil
outdoor
petrochemical
petroleum
petrolium
pipe
pipeline
pipes
piping
plant
pollutant
pollution
power
processing
production
protection
refinery
smokestack
stack
station
steam
steel
storage
structure
supply
tank
tanks
technology
tower
toxic
tree