Complex surfaces must be represented using either the surface or solid modeling technique.
描述零件复杂表面要用表面或实体模型。
As the standard of object oriented modeling technique, UML is suitable for making complex system design simplify.
作为面向对象建模技术的标准，U ML适合于将复杂的系统设计问题简单化。
According to the characteristics of RP technique, a method of geometric modeling for complex surfaces is proposed.
针对快速成形工艺特点，提出了一种基于实物的复杂曲面几何重建的方法。
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