英文關鍵字
air
architecture
background
blue
building
business
carbon
chemical
chimney
climate
cloud
co2
coal
construction
cooling
day
dirty
ecology
electric
electrical
energy
environment
factory
fog
fuel
gas
global
heat
industrial
industry
large
manufacturing
oil
pipe
plant
pollution
power
refinery
sky
smog
smoke
smokestack
spewing
stack
station
steam
technology
tower
toxic
white