来源:《Computer Aided Drafting,Design and Manufacturing》2017年第02期  作者:Li Erbo;Li Zhi;Li Hua;
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Isometrically subdivisible tetrahedra

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It is well known that a triangle can be divided by mid-point refinement into four sub-triangles with the same shape. Similarly, a tetrahedron can be parted into eight subtetrahedra, which are generally not uniform in shape. This paper proves that there exist a set of tetrahedra, which is called isometrically subdivisible tetrahedra(IST) and can be divided into eight isometric subtetrahedra, including identical and reflection ones. And a new classification of tetrahedra is put forward, based on w(本文共计8页)......[继续阅读本文]

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