hierarchy data structure 阶层数据结构 ; 分层数据结构
A profile contains a hierarchy of profile categories, which split up the data that you can store into contextual areas, similar to a folder structure on disk.
一个配置文件包含一个配置文件类别结构，这个结构分隔存储在上下文区域中的数据，类似于磁盘上的文件夹结构。
In fact, these data categories are the real thing, and the hierarchy inside each profile is a virtual copy of the same structure.
实际上，这些数据类别是真实的，而配置文件中的结构则是这个结构的虚拟副本。
On the basis of the analysis of function demand and system data, a general structure of the information system was designed. And the types and hierarchy structure of system data models were studied.
在系统功能需求和数据需求分析的基础上，进行了系统总体结构设计，并研究了系统数据模型类型，提出了系统数据模型的分层结构。
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