機器
accuracy
automated
automatic
bit
business
closeup
component
computer
controlled
cut
cutter
detail
drill
drilling
electric
engineering
equipment
fabricate
factory
hole
industrial
industry
iron
lathe
machinery
manufacturing
material
mechanical
metalwork
milling
operation
part
plant
precision
process
product
production
shop
solid
steel
technology
tool
turning
work
workpiece
workshop