trac·tor /ˈtræktɚ/
 進紙器牽引者,拖拉機


 trac·tor /ˈtræktɚ/ 名詞
 牽引器


 tractor
 定軌器


 Tract·or n.
 1. That which draws, or is used for drawing.
 2. pl. Med. Two small, pointed rods of metal, formerly used in the treatment called Perkinism.
 5. Aviation A propeller screw placed in front of the supporting planes of an aeroplane instead of behind them, so that it exerts a pull instead of a push; -- called also Tractor screw and Tractor propeller.
 6. Aviation An airplane having one or more tractor propellers; -- called also tractor airplane.

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 tractor
      n 1: a wheeled vehicle with large wheels; used in farming and
           other applications
      2: a truck that has a cab but no body; used for pulling large
         trailers or vans