document type declaration的意思|示意

If repeated validation isn't required, you can remove the document type declaration when the document is stored.

如果需要重复进行有效性验证，那么可以在存储文档时删除文档类型声明。

Notice the document type declaration, which is used to load a DTD, which contains any strings that should be localized (basically any natural language strings presented to the user).

请注意文档类型声明，它用于加载一个 DTD，其中包含所有应进行本地化的字符串（基本上包括呈现给用户的所有自然语言字符串）。

For the sake of brevity, most of the examples in this specification do not begin with the document type declaration that is mandatory at the beginning of each HTML document.

为了保持简洁，尽管HTML DTD要求每个文档都要以文档类型声明开头，本规范绝大部分的例子都没有对文档类型声明进行了省略。

The display of Listing 2 is precisely the same as that of Listing 1, so the XML declaration, document type declaration and namespace declarations are all omitted from the display.

清单 2 的显示与 清单 1 的显示完全一样，所以显示中忽略了 XML 声明、文档类型声明和名称空间声明。

These rules are stored in a separate document called a document Type Declaration (DTD), and are utilized to validate the accuracy of the XHTML document structure.

这些规则存储在一个称为“文档类型声明(Document Type Declaration (DTD))”的单独文档中，并且使用这些规则验证XHTML文档结构的准确性。

It turned out that eXist didn't resolve the relative URL used in the document type declaration.

这表明eXist没有解析文档类型声明中使用的相对url。