英文關鍵字
black
chimneystack
cloud
co2
dioxin
estate
fuel
gas
industrial
industry
oil
petrochemical
plant
pollute
refinery
sky
smoke
smokestack
tower
英文關鍵字
black
chimneystack
cloud
co2
dioxin
estate
fuel
gas
industrial
industry
oil
petrochemical
plant
pollute
refinery
sky
smoke
smokestack
tower