英文關鍵字
aerial
air
architecture
atmosphere
background
building
change
chemical
chimney
cityscape
climate
clouds
condensation
conservation
construction
danger
dirty
environment
environmental
factory
footpath
fumes
garbage
gas
global
industrial
industry
issues
landscape
location
manufacturing
nature
non
nuclear
people
pipe
pipes
plant
poisonous
pollution
poured
power
refinery
refreshment
smog
smok
smoke
social
stack
station
steam
stock
sunset
technology
thick
tower
town
trail
tube
ukraine
urban
vapor
video
view
vitality
white
zone