英文關鍵字
chemical
chemistry
chimney
energy
environment
factory
fuel
gas
global
industrial
industry
light
metal
night
oil
petrochemical
petroleum
pipe
pipeline
plant
pollution
refinery
sky
technology
tower
英文關鍵字
chemical
chemistry
chimney
energy
environment
factory
fuel
gas
global
industrial
industry
light
metal
night
oil
petrochemical
petroleum
pipe
pipeline
plant
pollution
refinery
sky
technology
tower