All other non-character entity types are ignored, and no validation is performed, even for declarations within the internal subset.
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。
However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.
不过，在项目与属性名称、注解、处理指示或cdata区段中不允许字元实体参考。
However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.
不过，在项目与属性名称、注解、处理指示或cdata区段中不允许字元实体参考。
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