機器
automated
business
cnc
computer
construction
control
cut
cutter
drill
drilling
engineer
engineering
equipment
factory
hand
heavy
industrial
industry
iron
job
lathe
machinery
machining
man
manual
manufacture
manufacturing
mechanic
mechanical
metal
metalwork
metalworking
mill
milling
occupation
operator
plant
precision
process
processing
production
safety
skill
steel
technology
tool
work
worker
workshop