投影几何 (投影幾何) tóuyǐng jǐhé
          
              tóuyǐng jǐhé 
              
              set phrase 
              projective geometry 
              Domain: Modern Chinese 现代汉语
              
                , Subdomain: Geometry 
              
              
                , Concept:  
              
              
              
                Notes: Same as 射影几何 (CC-CEDICT '投影幾何')