英文關鍵字
aerial
air
atmosphere
building
carbon
chemical
chimney
climate
close
cloud
coal
coming
damage
dioxide
drone
ecology
electric
electricity
environment
environmental
exhaust
factory
fuel
global
heavy
industrial
industry
manufacturing
nature
pipe
plant
pollute
pollution
power
production
refinery
russia
sky
smog
smoke
smokestack
smokestacks
smoking
stack
station
steam
technology
tower
toxic
warming