機器
alternative
auto
automobile
automotive
business
car
cheap
cheaper
clean
cng
compressed
dirty
dust
ecology
economy
energy
engine
equipment
fill
fuel
gas
gasoline
industrial
industry
liquefied
liquefied petroleum gas
liquid
lpg
motor
natural
ngv
nozzle
oil
old
petrol
petroleum
pollution
power
refuel
refueling
repair
service
station
system
technology
transport
transportation
travel
vehicle