機器
auto
automobile
automotive
blue
box
business
car
classic
closeup
cog
cogwheel
concept
connect
connection
cooperation
detail
engine
engineering
equipment
gear
gearbox
gearing
gears
industrial
industry
interlock
interlocked
iron
machinery
mechanic
mechanical
mechanics
mechanism
metal
metallic
motion
motor
part
power
precision
repair
steel
teamwork
technology
teeth
transmission
vehicle
wheel
work