英文關鍵字
atmosphere
background
blue
chemical
chimney
city
climate
coal
construction
contamination
ecology
energy
environment
environmental
evening
factory
global
heavy
industrial
industry
kemerovo
kuzbass
manufacturing
ozone
pipe
pipes
plant
pollution
power
russia
siberia
smog
smoke
smokestack
smokestacks
steam
steel
sunrise
sunset
technology
throw
tower
toxic
warming