英文關鍵字
accuracy
alloy
automated
beam
business
closeup
computer
construction
cooling
cooperation
cut
cutter
cutting
drill
drilling
energy
engineering
engraving
equipment
fabrication
factory
fire
flash
gear
grinder
heavy
hot
incision
industrial
industry
iron
knife
laser
laserbeam
lathe
light
line
lubing
lubricant
machine
machinery
machining
manufacture
manufacturing
mechanical
metal
metalwork
milling
modern
monitoring
motion
movement
moving
nobody
oil
oiling
operating
part
parts
plasma
power
precision
processing
producing
production
programmable
sharing
sheet
skill
spark
steel
technical
technology
tool
work
workshop