英文關鍵字
accuracy
automated
automation
carbide
closeup
coolant
cut
cutter
detail
electrical
engineering
equipment
factory
fast
hole
industrial
industry
iron
lathe
liquid
machanical
machine
machining
macro
manufacturing
mechanical
metal
metalwork
mill
milling
power
process
production
saw
shavings
speed
steel
tool
tooling
turning
work
worker
workshop