英文關鍵字
blue
brown
chimney
clouds
coal
colorful
cooling
damage
dirty
dusk
electricity
energy
environmental
evening
fired
generation
germany
giant
gray
grevenbroich
industrial
industry
lapse
large
lignite
niederau
night
plant
pollution
power
silhouette
sky
station
steam
steaming
tall
time
timelapse
tower