#steam_engine__steamengine  external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder
  supertype:  #external-combustion_engine  a heat engine in which ignition occurs outside the chamber (cylinder or turbine) in which heat is converted to mechanical energy
  part:  #steam_boiler  #crosshead  #steam_chest
  part of:  #steamship__steamer  a ship powered by one or more steam engines
  part of:  #steam_locomotive__steamlocomotive  a locomotive powered by a steam engine

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