機器
blade
circle
circular
construction
cut
diamond
die
disc
disk
drill
electric
engineering
equipment
factory
flash
grind
grinder
hand
hot
industrial
industry
iron
light
man
manual
manufacture
manufacturing
mechanic
metal
metal cutting
power
production
rotate
round
safety
saw
sharp
spark
speed
spin
steel
technical
technology
tool
turning
wheel
work
worker
workshop