機器
arm
auto
auto mechanic
automobile
automotive
business
car
car engine
car service
check
commercial
concept
detection
diagnosis
diagnostic
engine
engineer
engineering
equipment
expertise
factory
fix
garage
hand
industrial
industry
inspection
job
maintenance
man
mechanic
mechanical
men
motor
occupation
oil
part
people
prevention
preventive
profession
protection
repair
repairman
service
shop
station
system
technician
technology
tool
tools
transmission
transport
transportation
vehicle
work
workshop
wrench