站点地图协议以一种简明并且结构直观的XML文件为基础，该X ML文件由一个URL及其相关元数据的列表构成。
The sitemap protocol is based on a straight forward and intuitively structured XML file, which is composed of a list of URLs and their associated metadata.
总的来说，Sitemaps 0.90协议对爬行效率提供了改进，而常规站点地图引用和组合的机器指令无法完成这点。
Overall Sitemaps 0.90 protocol offers an improvement in terms of crawling efficiency that cannot be accomplished using regular sitemap references and robot directives combined.
总的来说，Sitemaps 0.90协议对爬行效率提供了改进，而常规站点地图引用和组合的机器指令无法完成这点。
Overall Sitemaps 0.90 protocol offers an improvement in terms of crawling efficiency that cannot be accomplished using regular sitemap references and robot directives combined.
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