機器
auto
automobile
automotive
belt
blur
car
chain
cogs
complex
complexity
connector
crankshaft
cylinder
device
drive
efficient
electric
energy
engine
engineering
focus
gear
generator
heart
industrial
machinery
manufacturing
mechanic
mechanical
metal
metallic
modern
motor
part
parts
performance
piston
plug
power
pulleys
spark
technical
technology
transmission
valve
vehicle
wheel