hierarchical data

基本解释

In fact, the atom coordinates and labels are non-hierarchical data for which XML is not the best choice.
实际上，原子坐标和表是一些非层次数据，而对于这类数据，XML 并非最佳选择。
With additional work, however, the bottom-up approach can support hierarchical data models and, therefore, should not be automatically dismissed.
然而，通过额外的工作可以使自底向上的开发方法支持层次数据模型，因而不会被自动淘汰掉。
The input and output steps of the assembly have a distinguished role: They transform relational data into hierarchical data and hierarchical data back to relational data, respectively.
程序集的输入和输出步骤有一个突出的作用：它们将关系型数据转换成分层数据，再将分层数据转换到关系型数据。

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