機器
automobile
clockwork
close
cog
cogwheel
complex
connection
cool
eccentricity
engine
engineering
equipment
extreme
gear
industrial
iron
lubrication
machinery
manufacture
manufacturing
master
mechanic
metal
metalwork
muzzle
oil
part
pinion
precision
production
quality
repair
rod
rotation
service
shiny
slippery
snout
steel
technology
tester
tool
tooth
view
wheel
workshop