pro.jec.tive

adj.（形容詞）
Extending outward; projecting.
突出的：向外伸出的；突出的
Relating to or made by projection.
投影的：由投影制作的或與其有關(guān)的
Mathematics Designating a property of a geometric figure that does not vary when the figure undergoes projection.
【數(shù)學】 射影的：指定幾何圖形屬性的，以便當這個圖形經(jīng)受影射時不發(fā)生變化

【引伸】
projec.tively
adv.（副詞）