Some conceptions and the correspoinding equation is put forward, such as Euler vector, Euler orientation cosine matrix and Euler switch orientation cosine matrix.
提出了欧拉向量、欧拉方向余弦矩阵、欧拉基变换方向余弦矩阵等概念，并给出相应的公式。
Some theories and key algorithms of solid modeling such as the theory of r-sets, representation model based on generalized Euler formulas, set membership classification are explained and summarized.
本文阐述并总结了实体造型的一些理论和关键算法，如正则集理论，基于推广的欧拉公式的表示模型，集合成员分类。
Some theories and key algorithms of solid modeling such as the theory of r-sets, representation model based on generalized Euler formulas, set membership classification are explained and summarized.
本文阐述并总结了实体造型的一些理论和关键算法，如正则集理论，基于推广的欧拉公式的表示模型，集合成员分类。
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