Secondly, we explain the whole metadata profile, including the functions, documents, elements in the metadata profile, metadata encoding schema and the rules for cataloging.
然后简要介绍了最终成型的元数据方案，包括对方案性质的定位、方案的组成、方案的属性元素集、置标方案及著录规则等内容；
The first style might be called the plain text encoding of the document metadata.
第一种风格可以称为文档元数据的 无格式文本编码。
For this and other reasons, the Semantic Web community sought a common approach for encoding rich metadata in our documents and RDFa was developed.
由于这样和那样的原因，语义网社区为在文档中编码丰富的元数据寻找了一种通用的解决方案，RDFa应运而生。
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