英文關鍵字
air
architecture
atmosphere
atmospheric
auto
background
banger
bay
blue
business
chemical
chemistry
chimney
chimneys
china
coal
coastline
construction
container
contamination
dark
diesel
dirty
distillery
dramatic
ecology
economy
energy
engineering
environment
environmental
factory
fuel
gas
gasoline
harbor
industrial
industry
oil
pipeline
plant
port
refinery
smoke
smokestacks
storage
structure
technology