Adopting hierarchy and tree structure, the model is expansible. 采用分级，树状层次结构，有良好的可扩展性。
Figure2 shows the hierarchy structure for a technical fitment evaluation. 图2展示了一个技术适配性评估的层次结构。
The analysis theory of fixture abstract information structure hierarchy is put forward. 提出了夹具抽象信息结构层次分析理论。
Portray the hierarchy levels within the functional location structure in the functional location number. 描述功能位置号中，功能位置结构的层次级别。
Secondly, conform superiority function and promote industry clusters, meanwhile enlarge the hierarchy of the functional structure. 整合优势职能, 促进产业集群, 加大职能结构的层次性