The projection of the special points on the intersection line of cylinder with oblique cylinder , of cone with half sphere and of oblique cylinder with cone are determined with the analytic method.

本文用解析法确定圆柱与斜圆柱、圆锥与半球及斜圆柱与圆锥的交线上特殊点的投影。

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An analytical method allowing exact reconstruction from cone-beam projection data which are detected from a single circular orbit is discussed.

本文介绍了一种可以对来自于单一圆轨道的锥束投影数据进行精确重建的分析方法。

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The solution of the projection on inward concave composition surface of cylinder and cone is discussed. and the critical point on the projection is calculated with analytical method.

本文着重介绍内凹的圆柱和圆锥组合面上落影的求法，并尝试利用解析的方法，求出落影上的特殊点。

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