英文關鍵字
blade
circle
circular
cut
cutting
die
disc
disk
drill
electric
engineering
equipment
flame
flash
grind
grinder
grinding
hand
hold
industrial
industry
iron
light
machine
machinery
man
manual
manufacture
manufacturing
mechanic
metal
part
production
rotate
round
saw
sharp
spark
speed
spin
steel
technology
tool
turning
vise
wheel
work
worker
workpiece
workshop