機器
explosion
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abrasive
blacksmith
circle
construction
craft
cutter
cutting
danger
electric
electricity
equipment
fire
flames
glove
grind
grinder
hand
heat
heavy
hot
human
industry
iron
light
line
man
manufacture
manufacturing
mechanic
metal
orange
pipe
power
protective
rotate
section
sharp
sparks
steel
strong
tool
turning
wheel
work
worker
working
workshop