英文關鍵字
accuracy
business
cutter
cutting
drill
engineer
engineering
equipment
factory
fettler
fitter
industrial
industry
instrument
iron
labor
laborer
lathe
machine
maintenance
man
manufacture
manufacturing
mechanic
mechanical
mechanician
metal
metalwork
metalworker
metalworking
miller
milling
operative
operator
plant
process
processing
production
repairman
service
serviceman
setup
stainless
steel
technical
technology
tool
work
worker
workman
workshop