英文關鍵字
air
airquality
atmosphere
billowing
blue
breathe
building
chimney
community
compounds
daytime
dimethyl
economy
emits
emitting
emmisions
environment
environmental
escaping
exhaust
factory
gas
global
horizontal
industrial
industry
into
issue
issues
manufacture
manufacturing
mass
methanol
mill
nobody
panoramic
paper
people
pipe
plant
pollution
production
right
sky
smog
smoke
stack
steam
stinky
sulfide
sulfur
white
workplace