Another important concept in the SDO architecture is the data graph, a structure that encapsulates a set of data objects.
SDO体系结构中的另一个重要概念是数据图，它是封装一组数据对象的结构。
A quick description of the pseudo-metadata code and the resulting data graph structure is provided below.
下面将对伪元数据代码和结果数据图结构进行简要的介绍。
An RDF graph contains data and structure.
rdf图包括数据和结构。
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