Section size, high precision, so that structuralassembly more convenient.
截面尺寸精度高，使结构装配更加方便。
2
Concentrating on the conceptual and structural stage, a hierarchical data structure of the logical assembly model was presented, and the key components of it were analyzed.
侧重于概念和结构设计阶段，提出了概念装配模型的层次化数据结构，并对其中的关键组成元素进行了分析。
3
The algorithm of the subassembly division is proposed according to subassembly definition and matrix expression for the assemblystructural information.