機器
blade
circle
circular
crosscut
cut
disc
electric
electrical
equipment
factory
flash
hand
headphones
industrial
industry
iron
labor
laborer
man
manual
manufacture
manufacturing
mechanic
metal
noise
power
production
protection
radial
repair
safety
sawing
spark
speed
steel
technology
tool
turning
welding
wheel
work
workbench
worker
workpiece
workplace
workshop