rifling
 裝膛線,膛線


 Ri·fling n. (a) The act or process of making the grooves in a rifled cannon or gun barrel. (b) The system of grooves in a rifled gun barrel or cannon.
 Shunt rifling, rifling for cannon, in which one side of the groove is made deeper than the other, to facilitate loading with shot having projections which enter by the deeper part of the grooves.

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 Ri·fle v. t. [imp. & p. p. Rifled p. pr. & vb. n. Rifling ]
 1. To seize and bear away by force; to snatch away; to carry off.
    Till time shall rifle every youthful grace.   --Pope.
 2. To strip; to rob; to pillage.
 Stand, sir, and throw us that you have about ye:
 If not, we'll make you sit and rifle you.   --Shak.
 3. To raffle. [Obs.]


 rifling
      n : the cutting of spiral grooves on the inside of the barrel of
          a firearm [syn: grooving]