开源的 D2RQ 接口让您可以将关系数据当作一个三元组集合对待，因而该数据可以合并到这样的应用程序中。
The open source D2RQ interface lets you treat relational data as a collection of triples so that this data can be incorporated into such an application.
RDF具有用于查询三元组的对应W3C SPARQL标准，在您组合了一些三元组集合之后，此标准将尤其方便，正如您在本文中将会看到的一样。
RDF has the companion W3C SPARQL standard for querying triples, which is especially handy after you combine a few sets of triples, as you'll see in this article.
合并数据(不同的图)是一项简单操作，只需要建立包含图中所有三元组的集合。
Merging data (different graphs) is a simple operation that involves constructing a set of triples that includes all of the triples from the graphs.
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