英文關鍵字
accuracy
action
alloy
automated
caution
close
closeup
company
complex
concept
construction
cut
cutter
detail
device
drill
electric
engine
engineer
factory
gear
grind
groove
heavy
high
industrial
iron
lathe
machinery
manufacture
material
metalwork
mill
parts
power
process
production
robotic
robotics
rotation
speed
stainless
steel
structure
technological
tool
turn
weld
workshop