英文關鍵字
accuracy
action
automated
burning
cnc
computer
construction
contemporary
cut
cutting
danger
digitally
drilling
energy
engineering
equipment
fabrication
factory
flame
heat
industrial
industry
iron
laser
lasercutting
lighting
line
machine
machinery
machining
manufacture
manufacturing
mechanical
melting
metal
metalwork
motion
operation
part
precision
processing
production
robot
sheet
skill
sparks
steel
technology
tool
working