英文關鍵字
architecture
building
chemical
chimney
city
construction
energy
equipment
factory
fuel
industrial
industry
metal
oil
pipe
plant
pollution
power
production
refinery
sky
steel
tower
urban
window
英文關鍵字
architecture
building
chemical
chimney
city
construction
energy
equipment
factory
fuel
industrial
industry
metal
oil
pipe
plant
pollution
power
production
refinery
sky
steel
tower
urban
window