機器
assemble
auto
automobile
car
cylinder
cylinder block
detailing
diagnostic
diesel
dirty
disassembled
dismantled
engine
equipment
examination
expertise
fix
fourstroke
fuel
garage
hands
human
indoors
industry
inspection
maintenance
man
mechanic
motor
oil
old
part
person
piston
professional
renovation
repair
section
service
station
technician
tool
transport
transportation
valve
vehicle
work
worker
working