所有其他非字符实体类型都被忽略，而且不进行检验，即使对于内部子集中的声明。
All other non-character entity types are ignored, and no validation is performed, even for declarations within the internal subset.
可以声明一个新的NAMESPACE常量，这隐式声明了一个字符数据类型的常量。
You can declare a new NAMESPACE constant, which is implicitly made a constant and from the character data type.
那个看上去费解的字符串声明了所需要的变量类型，我们稍后将说明它。
The cryptic-looking string declared the types of variables expected, and will be explained later.
将字符指针和字符字节声明为无符号类型的，这样可以防止8位字符的符号扩展问题。
Declare character Pointers and character bytes as unsigned to avoid sign extension problems with 8-bit characters.
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）。
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）。
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).
应用推荐