#throttle__accelerator__throttle_valve  a valve that regulates the supply of fuel to the engine
  supertype:  valve  control consisting of a mechanical device for controlling the flow of a fluid
  part of:  fuel_system  equipment in a motor vehicle or aircraft that delivers fuel to the engine
     part of:  aircraft  a vehicle that can fly
     part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

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