Read Edit View history 投影几何 tóuyǐngjǐhé projective geometry Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 投影几何/ 投影幾何 tóuyǐngjǐhé projective geometry 投影几何是数学的一个分支。 Edit Delete References Add reference same_as 投影几何/投影幾何 → 射影几何/射影幾何 Edit Delete