機器
arm
auto
automobile
automotive
car
checking
dirty
employment
engine
equipment
fix
fixing
garage
grease
hand
industry
inspection
job
key
labor
maintain
maintenance
man
mechanic
mechanical
motor
oil
part
people
person
problem
profession
repair
repairing
repairman
safety
service
shop
station
technician
tool
transport
transportation
vehicle
work
worker
working
workshop
wrench