英文關鍵字
architecture
atmosphere
building
business
chemical
chimney
coal
color
colorful
construction
dirty
ecology
electricity
emissions
energy
environment
factory
fuel
high
industrial
industry
ironworks
manufacturing
metallurgical
mining
outdoors
panorama
pipe
plant
pollution
power
processing
setting
sinter
smog
smoke
smokestack
station
steam
steel
structure
technology
tower
toxic
train
transportation
travel
works