资料来源 : pyDict

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资料来源 : Webster's Revised Unabridged Dictionary (1913)

Spanner \Span"ner\, n.
   1. One who, or that which, spans.

   2. The lock of a fusee or carbine; also, the fusee or carbine
      itself. [Obs.]

   3. An iron instrument having a jaw to fit a nut or the head
      of a bolt, and used as a lever to turn it with; a wrench;
      specifically, a wrench for unscrewing or tightening the
      couplings of hose.

   4. pl. A contrivance in some of the ealier steam engines for
      moving the valves for the alternate admission and shutting
      off of the steam.

资料来源 : WordNet®

spanner
     n : a hand tool that is used to hold or twist a nut or bolt
         [syn: {wrench}]