它以类为基础，并根据类的层次结构和继承关系用链表来构造规则库。
On the basis of class and in accordance with the level structure and the inheritance relation of class, a rule base is constructed by using linked lists.
三段论规则可以区分为构造规则、一般规则和导出规则 ，它们在层次上是不同的 ；
The syllogistical rules may be analyzed into constitutive ones, general ones and educed ones, which are stratified differently.
本文首先介绍了这五种观点及相应的规范语言的概念和构造规则，并讨论了它们之间的关系。
This paper introduces five viewpoints and the corresponding languages' concepts and structuring rules. The relationship between the viewpoint languages is also discussed.
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