機器
automated
block
chrome
cog
component
cutter
cutting
detail
engineering
equipment
gadget
gear
hard
heavy
industrial
industry
instrument
iron
lathe
machinery
machining
manufacturing
mechanical
mechanics
mechanism
metal
metalwork
metalworking
old
pattern
pinion
pipe
power
process
production
rod
rotor
screw
spiral
steel
technical
technology
threaded
tool
tube
turning
work
workshop