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。
Secondly, the geometric characteristics and the feature with respect to pressure drop of the new cooling structure were analyzed.
数据库表示工件的结构和几何特性。
A database is established for representing the structure and geometric properties of the workpieces.
由于斜交轮胎复杂的几何结构和材料特性，选用层单元和体单元的组合可以既经济又准确地对轮胎进行模拟。
Owing to the complexity in bias tire structure and material properties, it is both economical and exact to model the tire by using layer elements and solid elements.
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