英文關鍵字
aerial
air
atmosphere
background
billowing
blowing
breeze
cable
carbon
chimneys
clip
clouds
concept
ecological
ecology
elevated
environment
factory
fire
footage
industrial
industry
infrastructure
landscape
manufacturing
mining
motion
plant
plume
pollutants
pollution
puff
pulley
scenic
sky
smoke
smokestack
smoking
trees
video
view
weather
white
wind
windy
woodland