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Birectangular

资料来源 : pyDict

双直角形

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

Birectangular \Bi`rec*tan"gu*lar\, a. [Pref. bi- + rectangular.]
   Containing or having two right angles; as, a birectangular
   spherical triangle.
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