projective的用法和樣例：
辭彙搭配
- projective geometry [數]投影幾何學...
- projective cover degree 投影蓋度
- projective technique 投射技術
- projective total cover degree 投影總蓋度
- projective coordinate 投影坐標
- projective space 射影空間
- projective drawing 投影畫
- projective subspace 射影子空間
- projective geometry code 投影幾何碼prote...
- projective abundance 投影多度
