It builds on Unicode [Unicode Consortium technical report and ISO standard] to define strict rules for text format as well as the Document Type Definition (DTD) validation language.
它在Unicode [unicodeConsortium技术报告和ISO标准]的基础上定义了文本格式的严格规则，以及DocumentType Definition(文档类型定义，DTD)验证语言。
DTD fragments in element definitions come from the strict document type definition except for the elements related to frames.
除了和框架有关的元素外，所有的有关元素定义DTD片段都来自严格文档类型定义(DTD)。
DTD fragments in element definitions come from the strict document type definition except for the elements related to frames.
除了和框架有关的元素外，所有的有关元素定义DTD片段都来自严格文档类型定义(DTD)。
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