In this paper, the structure characteristics of particle surface of black rice husk produced under different conditions were studied by the fractal geometry.
应用分形几何理论，研究了不同条件下制备的黑稻壳颗粒的表面结构特征。
The topology and geometry of solid is represented by trimmed curve surface and half-edge data structure.
雕塑实体模型通过裁剪曲面片和半边数据结构来表达几何和拓扑信息。
Since the design of the glass shell geometry, such as its structure, its surface shape and the variations in curvature, can well be parameterized, the design efficiency has been considerably improved.
本设计实现了玻屏表面外形和曲率变化及玻壳结构设计的全参数化，提高了玻壳的设计效率。本文还给出了计算玻壳外型的公式和一些技术参数。
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