機器
angle grinder
assemblage
assembler
assembling
assembly
close up
conveyer
craftsman
cutting
engineer
engineering
fitter
grinding
grinding machine
hands
industry
laborer
machinery
man
manual worker
manufacture
manufacturing
mechanic
mechanician
part
power tool
production
production engineer
production line
repairman
serviceman
set
smoothing
sparks
technologist
technology
unit
work
worker
working
workman
workshop