The PDPEL is based on XML, so it includes the advantages of XML, such as: Openness, simplicity, self-descriptive, Separation of structure and content, and good scalability, and so on.
而且由于PDPEL基于XML格式，具有XML的优点，如：开放性、简单性、自我描述性、结构与内容分离和良好的可扩展性等。
The PDPEL is based on XML, so it includes the advantages of XML, such as: Openness, simplicity, self-descriptive, Separation of structure and content, and good scalability, and so on.
而且由于PDPEL基于XML格式，具有XML的优点，如：开放性、简单性、自我描述性、结构与内容分离和良好的可扩展性等。
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