英文關鍵字
commercial
refinery
raw
oil
smokestack
tower
factory
petroleum
station
cement
facility
structure
site
chemical
heavy
building
manufacture
environmental
gas
power
timelapse
industry
processing
technology
production
exhaust
fuel
metallurgy
smoke
chimney
steel
chemistry
chalk
manufactory
petrochemical
concrete
warehouse
pipes
engineering
emissions
business
plant
greenhouse
construction
energy
mining
contamination
polluting
producing