英文關鍵字
automated
blaze
boring
computer
cut
cutting
danger
energy
engineering
equipment
factory
flat
health
heat
hot
industrial
industry
laser
lasercutting
light
line
machine
machinery
machining
macro
manufacture
manufacturing
mechanical
metal
metalwork
modern
plasma
precision
process
processing
production
safety
sheet
shop
space
steel
technology
tool
weld
welding
work
workpiece
workshop