英文關鍵字
chemical
chemistry
consist
container
economic
energy
environment
environmental
factory
fuel
gas
gasoline
green
hydrocarbon
industrial
industry
liquefaction
lpg
methane
mixture
natural
naturally
occurring
oil
petrochemical
pipe
pipeline
pipelines
pipes
plant
pollution
processing
produce
production
refinery
sphere
station
storage
tank
toxic
valve
valves
warehouse
workshop