機器
accuracy
background
bore
boring
boring machine
build
business
circle
closeup
construct
control
device
drill
drilling
engine
engineer
engineering
equipment
factory
heavy
hole
industrial
industry
machinery
machining
manufacture
manufacturing
mechanical
metal
metallic
milling
motion
power
process
processing
produce
production
rotate
rotation
spin
spinning
stainless
steel
technology
tool
tunnel
turning
work
workshop