本文列举了一维基本形间射影对应的各种定义，并证明了它们之间的等价性。
The article lists four kinds of definitions of projective correspondences in one-dimensional basic figures, and proves that those are equivalent.
建立格网模型的效果表明，借助柱面坐标系统构造狄罗里三角形的方法可以作为三维物体表面三角形格网模型的一个重要的基本方法。
The effect of model indicates that the Delaney triangle method of constructing using cylindrical reference frame is an important basic method of constructing triangular grid model.
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