新的目标准则函数考虑了数据集样本的模糊隶属关系和样本几何分布两个方面的因素，使算法的鲁棒性和分类的正确性大大加强。

Two factors are considered in cluster-validity criterion to enhance the robustness of algorithm and the validity of clustering, one is fuzzy membership and the other is geometric property.

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所以我们将有益于大多几何数学概念应付我们的颜色，例如准则、数积、投射、自转或者距离。

Therefore we will benefit of most of the geometric mathematical concepts to deal with our colors, such as norms, scalar product, projection, rotation or distance.

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本文导出了平面螺管几何参数之间的关系及换热准则方程，并对这种换热器进行了设计计算和特点分析。

The relations between the geometric parameters, as well as the heat transfer criterion equations, of the plane spiral-tube are derived.

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