英文關鍵字
chamfer
coolant
cooling
cuts
cutter
cylinders
day
decrease
diameter
dirty
dungeon
engineering
facilities
factory
flow
for
from
gloomy
hard
heavy
includes
industry
internal
knife
large
lathe
machine
management
manufacturing
mens
metal
metallurgical
modern
mounting
operation
pipe
plant
prepares
production
reducing
robots
russian
shavings
side
style
supply
system
torch
turner
twentiethcentury
urban
video
view
work
worker
working