When an entity reference is encountered, you obtain its entity declaration and retrieve the cached notation declaration by its name.

遇到实体引用时，取得实体声明并根据名称检索缓存的符号声明。

youdao

The notation declaration gives an internal name to an existing notation so that it can be referred to in attribute list declarations, unparsed entity declarations, and processing instructions.

表示法声明为现有表示法提供内部名称，以便可以在属性列表声明、未分析实体声明和处理指令中引用。

youdao

The notation declaration gives an internal name to an existing notation so that it can be referred to in attribute list declarations, unparsed entity declarations, and processing instructions.

表示法声明为现有表示法提供内部名称，以便可以在属性列表声明、未分析实体声明和处理指令中引用。

youdao