英文關鍵字
accuracy
action
automated
boring
carbide
closeup
cnc
cut
cutter
detail
engineering
equipment
factory
flames
flat
guideway
industrial
industry
instrument
iron
lathe
machine
machinery
machining
manufacture
manufacturing
metal
metalwork
modern
occupation
plant
precision
process
processing
production
shop
spark
speed
steel
system
technology
tool
tooling
treatment
welding
work
working
workpiece
workplace
workshop