convexo-convex
  (a.)雙凸面的
  convexo-convex 形容詞
  Con·vex·o-con·vex a. Convex on both sides; double convex. See under Convex, a.
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  convexo-convex
       adj : convex on both sides; lentil-shaped [syn: biconvex, lenticular,
              lentiform]