同时，讨论了模糊类层次中多重继承的问题。
Simultaneously, the problem of multiple inheritance in class hierarchy is considered.
本文提出了一种建立面向对象数据库中模糊类层次模型的方法。
This paper presents an approach to establishing fuzzy class hierarchy model in object-oriented database.
利用属性与类的相关和类与子类间的语义距离来建立类与子类的关系。同时，讨论了模糊类层次中多重继承的问题。
The relationship between the class and the sub-class is established through the relevance of the attribute to the fuzzy Glass and the semantic distance between the class and the sub-class.
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