英文關鍵字
accuracy
action
alloy
caution
center
close
closeup
company
complex
concept
construction
conveyer
cut
cutter
detail
device
drill
electric
electrical
engine
engineer
factory
gear
groove
heavy
industrial
iron
lathe
machine
machinery
manipulator
manufacture
metal
metalwork
mill
motion
operation
power
process
production
robotic
rotation
service
stainless
steel
structure
technology
turn
weld
workshop