英文關鍵字
man
mechanic
welder
repairman
garage
workshop
worker
workplace
motor
electrode
flash
job
instrument
technician
welding
work
metalwork
occupation
mechanical
process
profession
repair
tool
manual
automobile
workman
concept
craftsman
protection
engineer
equipment
fix
handyman
indoor
male
service
maintenance
vehicle
people
production
labor
safety
professional
industry
skill
background
unrecognizable
scene