英文關鍵字
abandoned
backgrounds
barrel
barrels
bio
blue
business
chemical
close
color
colored
concepts
container
corrosive
crisis
crude
danger
diesel
dirty
drum
ecology
empty
energy
environment
equipment
factory
fossil
fuel
gallon
garbage
gas
gasoline
hazard
hazardous
image
industrial
industry
multi
nobody
nuclear
nuclearf
oil
old
order
plant
pollution
radioactive
radioactivity
shiny
stack
storage
toxic
up
waste