“concave polygon”的概念、定义、翻译、参考文献-科学参考

单词	concave polygon
释义	concave polygon [`kän´kāv `päl·ǝ´gän] ^MATHEMATICS A polygon at least one of whose angles is greater than 180°.
随便看	counterpoise gun carriage counterpoise method counterradiation counterrecoil countershaft countersink countersinking counterstain counter sun countersunk bolt counter terms countertransference counter tube counter voltage counterweight counting chamber counting circuit counting-down circuit counting glass counting ionization chamber counting rate counting rate meter counting rate-voltage characteristic country rock count system

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