Message in Chinese (Simplified) (中文(简体))
成员元素“<var>X</var>”的类型无法通过来自头元素“<var>Y</var>”的类型的限制或扩展进行派生，因为它包含 block='restriction' 或 block='extension'。
Unlocalized message
Member element <var>X</var>'s type cannot be derived by restriction or extension from head element <var>Y</var>'s type, because it has block='restriction' or 'extension'.
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