機器
accuracy
aluminum
assembly
automated
automobile
bolt
bore
business
computer
cutter
cutting
drill
engineer
engineering
equipment
fabrication
factory
foundry
hole
industrial
industry
lathe
line
machinery
machining
manufacturing
mechanic
metal
mill
milling
modern
occupation
operate
operating
part
precision
processing
production
professional
revolve
sharp
stainless
steel
technology
tool
worker
workpiece
workshop