英文關鍵字
aerial
view
pipes
chemical
enterprise
plant
air
pollution
concept
industrial
landscape
environmental
waste
thermal
power
refinery
oil
factory
industry
gas
chimney
smoke
building
chemistry
contamination
danger
dirty
ecology
electrical
emission
energy
equipment
flue
fume
furnace
global
hazardous
haze
manufacturing
panorama
pipe
pipeline
production
station
technology
toxic