英文關鍵字
accuracy
actions
appliance
arm
automated
backgrounds
business
circle
closeup
cnc
computer
construction
control
craft
cutting
drill
drilling
energy
engine
engineer
engineering
equipments
factory
heavy
hole
industrial
industry
iron
lathe
machine
machinery
manual
manufacturing
material
mechanic
metal
metallic
metalwork
mill
modern
occupation
part
people
plate
power
processing
robot
skill
sparks
speed
sprocket
steel
technology
tool
tooling
turning
work
worker
working
workshop