英文關鍵字
automated
blaze
boring
building
copy
cut
cutting
danger
energy
engineering
equipment
fabrication
factory
fire
heat
industrial
industry
iron
laser
lasercutting
light
machine
machinery
machining
manufacture
manufacturing
material
mechanical
melting
metal
metalwork
metalworking
object
plant
plasma
precision
process
processing
production
sheet
shop
steel
technology
tool
treatment
weld
welding
work
workpiece