燃やす
environmental
air
architecture
atmosphere
chiming
chimnee
chimney
city
condensate
condensation
cylinder
dioxide
ecological
ecology
energy
environment
evaporate
factory
fuel
gas
generate
generating
heating
industrial
industry
machinery
manufacturing
pharm
pipe
plant
pollute
polluting
pollution
production
pylon
sky
smoke
smoking
station
steam
tower
tube
turbine
urban
vapor
vapour
water
work
working