英文關鍵字
aerospace
automated
automobile
automotive
boring
cut
cutting
energy
engineering
engraving
equipment
factory
flames
health
heat
industrial
industry
laser
lasercutting
light
machine
machinery
machining
macro
manufacture
manufacturing
mechanical
melting
metal
metalwork
metalworking
modern
object
plasma
plate
precision
processing
production
sheet
shop
space
steel
technology
tool
treatment
welding
work
workshop