英文關鍵字
construction
cut
cutter
cutting
cycle
detail
device
drill
engineer
engineering
equipment
fabrication
factory
industrial
industry
instrument
lathe
machine
machinery
machining
maintenance
manufacturing
mechanic
mechanical
metal
metalwork
metalworker
metalworking
mill
miller
milling
operative
parts
process
production
repairman
rotating
rotation
service
serviceman
shaving
steel
technology
tool
tools
turnery
turning
work
worker