The business logic of the database arranges these documents into discussion threads, with a child-parent hierarchal structure.
数据库的业务逻辑将通过child -parent层次结构把这些文档组织成讨论线索。
There are a number of views that display these documents based on this hierarchal structure, sorted into categories, and indexed by author, by date, and by others.
有很多视图根据此层次结构显示文档，分为多个类别并按创建者、日期和其他条件进行索引。
When using OLAP based packages, reports which project levels from the same hierarchy in a different order than defined by the hierarchal structure of the metadata will produce the following error.
在使用基于OLAP的程序包时，以不同的、并非根据元数据的等级结构定义的顺序映射来自同一等级结构的级别的报表将产生以下错误。
The equipment parameters of power system are described in the Frame Knowledge Representation, and a visual and hierarchal clear data structure is constructed.
该系统用框架知识表示法来描述电力系统的设备参数，建构了一个直观的、层次分明的数据结构。
The equipment parameters of power system are described in the Frame Knowledge Representation, and a visual and hierarchal clear data structure is constructed.
该系统用框架知识表示法来描述电力系统的设备参数，建构了一个直观的、层次分明的数据结构。
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