#steering_system__steering_mechanism  a mechanism by which something is steered (especially a motor vehicle)
  supertype:  #mechanism  device consisting of a piece of machinery; has moving parts that perform some function
  subtype:  #helm.steering_system  #power_steering  #rudder.steering_system
  part:  #steering_gear  a gear that couples the the steering wheel to the steering linkage of a motor vehicle
  part:  #steering_linkage  mechanism consisting of a system of rods and levers connected to the front wheels of a motor vehicle; the steering gear pushes the steering linkage left or right which swivels the front wheels causing the vehicle to turn
     part:  #tie_rod__tierod  either of two rods that link the steering gear to the front wheels
  part:  #steering_wheel__wheel  a handwheel that is used for steering

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