機器
acid
barrel
big
building
chemical
color
company
container
corrosive
danger
dangerous
drum
ecology
empty
environment
equipment
factory
fuel
gallon
garbage
gasoline
goods
hard
industrial
industry
laboratory
line
metal
object
oil
old
pastis
pipe
plastic
pollution
pump
row
steel
storage
tank
tool
toxic
urban
warehouse
waste
water
weight
work