#shock_absorber__shockabsorber__shock__cushion  a mechanical damper; absorbs energy of sudden impulses
  supertype:  #damper.device  a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
  subtype:  #air_spring  a mechanical device using confined air to absorb the shock of motion
  part of:  #suspension_system__suspension  a mechanical system of springs or shock absorbers connecting the wheels and axles to the chassis of a wheeled vehicle
     part of:  #railroad_car__car__railcar__railway_car__railwaycar  a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails"
     part of:  #motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

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