機器
background
brass
business
circle
clockwise
closelyknit
cog
cogwheel
cohesive
concept
conveyor
conveyor belt
cooperation
counterclockwise
driving
element
engineering
gear teeth
gears
gearwheel
group
illustration
industry
interworking
machinery
mechanism
metal
part
piston rod
push
pusher
ratio
rod
rotation
shape
spring
steel
stock
team
teamwork
teeth
torque transmission
transmission
turning
wheel
working
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