機器
add
adjustment
auto
automobile
bottle
car
change
check
container
diagnosis
dirty
employment
engine
equipment
fill
fix
garage
industry
inspection
internal
job
labor
level
lube
lubricant
maintain
maintenance
mechanic
mechanical
motor
oil
part
people
pouring
problem
profession
repair
repairman
replacement
safety
service
technician
technology
transportation
tuning
vehicle
worker
working
workshop