機器
accuracy
background
blade
carbide
circle
construction
cut
cutter
die
disk
engineering
equipment
factory
finishing
grind
grinder
hand
hard
industrial
industry
iron
labor
light
liquid
manual
manufacture
manufacturing
mechanic
metal
mill
part
plant
polish
power
production
rotate
saw
spark
speed
stainless
steel
technology
tool
treatment
turning
wheel
work
worker
workshop