Next, I'll take a closer look at the components of OWL.

接下来，我们将详细了解一下owl的组件。

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Although the dream is not yet realized, enough building blocks are now in place to enable you to take advantage of several Semantic Web technologies on your Web site, including RDF, OWL and SPARQL.

尽管这个梦想目前还没有实现，但是现在有足够的构建块使您能够在Web站点中利用多种语义Web技术，包括RDF、OWL和SPARQL。

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Finally, take washer as an example to give its model of representation of the four layers, and describe it with OWL.

最后以洗衣机为例，给出它在四层模型中的表示和OWL描述。

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