英文關鍵字
above
aerial
air
atmosphere
boiler
building
chemical
chimney
city
climate
coal
conditions
cooling
damage
danger
dioxide
drone
ecology
energy
environment
environmental
exhaust
factory
garbage
global
heating
humanity
industrial
industry
landscape
manufacturing
metallurgical
nature
near
pipes
plant
pollution
poor
river
sky
smog
smoke
smoking
stack
station
territory
toxic
urban
view
zone