英文關鍵字
action
automated
automobile
bench
blaze
burn
business
cut
danger
electrode
engineering
engraving
equipment
factory
fire
flame
flat
heat
hot
industrial
industry
iron
laser
light
line
machine
machinery
machining
manufacture
manufacturing
mechanical
metal
metalwork
modern
plasma
precision
processing
production
sheet
spark
steel
technology
tool
treatment
work
working
workpiece