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

Drawbore \Draw"bore`\, n. (Joinery)
   A hole bored through a tenon nearer to the shoulder than the
   holes through the cheeks are to the edge or abutment against
   which the shoulder is to rest, so that a pin or bolt, when
   driven into it, will draw these parts together. --Weale.

Drawbore \Draw"bore`\, v. t.
   1. To make a drawbore in; as, to drawbore a tenon.

   2. To enlarge the bore of a gun barrel by drawing, instead of
      thrusting, a revolving tool through it.