Read Edit View history 射影几何学 shèyǐngjǐhéxué projective geometry Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 射影几何学/射影幾何學 · shèyǐngjǐhéxué · projective geometry 2026/03/04 射影几何学 / 射影幾何學 shèyǐngjǐhéxué projective geometry projective geometry 射影几何学主要研究图形在投影变换下的性质。 created sense Mar 4, 2026, 02:25 AM