機器
auto
automated
automobile
cargo
container
control
crisis
delivery
dial
diesel
distribution
energy
engine
equipment
factory
fill
fire
fossil
freight
fuel
gas
gasoline
grey
heavy
horizontal
hose
image
living
management
manufacturing
motor
oil
petrol
petroleum
portable
power
pressure
price
problem
pump
refinery
retail
risk
service
stack
station
storage
tank
tube