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Reciprocated

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Reciprocate \Re*cip"ro*cate\, v. i. [imp. & p. p.
   {Reciprocated}; p. pr. & vb. n. {Reciprocating}.] [L.
   reciprocatus, p. p. of reciprocare. See {Reciprocal}.]
   To move forward and backward alternately; to recur in
   vicissitude; to act interchangeably; to alternate.

         One brawny smith the puffing bellows plies, And draws
         and blows reciprocating air.             --Dryden.

   {Reciprocating engine}, a steam, air, or gas engine, etc., in
      which the piston moves back and forth; -- in distinction
      from a rotary engine, in which the piston travels
      continuously in one direction in a circular path.

   {Reciprocating motion} (Mech.), motion alternately backward
      and forward, or up and down, as of a piston rod.
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