機器
adult
auto
automobile
automotive
background
bottle
car
change
closeup
diagnostic
diesel
engine
equipment
gasoline
hand
industry
lube
lubricant
lubrication
maintenance
male
man
manual
mechanic
mechanism
motor
oil
one
person
petroleum
pouring
repair
service
servicing
synthetic
system
technician
technology
transport
transportation
truck
vehicle
young