英文關鍵字
burning
fire
spark
graphite
slow
motion
electric
electrode
industry
technology
production
molding
material
fixture
jig
line
mould
die
mold
water
process
manufacturing
copper
machine
discharge
edm
eroding
iron
forming
mechanical
automation
workpiece
erosion
technical
oil
metalwork
setup
electrical
machining
cut
precision
metal
engineering
manufacture
processing
tool
industrial
machinery
mechanic
workshop
factory
scene
working