機器
arm
auto
automotive
bottle
car
closeup
concept
crude
derrick
diesel
energy
engine
fix
fuel
gear
gearbox
hand
hood
industrial
industry
liquid
lubricant
lubrication
machinery
maintenance
manufacturing
mechanic
mechanical
metal
mileage
motor
new
oil
person
personnel
petroleum
piston
pour
repair
replacement
service
station
technology
transportation
vehicle
work
worker
yellow