Secondly, the geometric characteristics and the feature with respect to pressure drop of the new cooling structure were analyzed.
分析了这种新型树状分形冷却通道结构的几何特征和阻力特性。
A new strategy of constructing and managing the parametric model is used in used in this method. It extends usual graphics data structure to describe geometric constraint.
该方法引入了建立和管理参数化模型的策略，通过扩展一般的图形数据结构统一表示几何约束。
Meanwhile, a new geometric constant is introduced, its properties and the relationship among uniform nonsquareness, normal structure and the constant is studied.
同时还引入了一个新的几何常数，并研究了它的几何性质及其与一致非方、正规结构、一致正规结构之间的关系。
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