资料来源 : pyDict

云形规,齿条,制转楔,花键装以角栓,开键槽

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

Spline \Spline\, n.
   1. A rectangular piece fitting grooves like key seats in a
      hub and a shaft, so that while the one may slide endwise
      on the other, both must revolve together; a feather; also,
      sometimes, a groove to receive such a rectangular piece.

   2. A long, flexble piece of wood sometimes used as a ruler.

资料来源 : WordNet®

spline
     n 1: a flexible strip (wood or rubber) used in drawing curved
          lines
     2: a thin strip (wood or metal) [syn: {slat}]