機器
blue
checklist
clipboard
cog
colour
computer graphic
coveralls
digital
digitally generated
document
engine
expertise
grey
handyman
holding
industry
job
machine man
machinist
maintenance engineer
manual
mechanic
notes
noting
occupation
paperwork
pen
preparing
professional
protection
repairman
safety
service
skill
standing
technician
uniform
vignette
wheel
work wear
worker
workman
writing