Basic principles of non - equivalent machining of spatial cam surfaces 空间凸轮廓面非等价加工的基本原理
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Mining ordering rules based on ordered relations is a concrete example of application of generalizations of rough set model with non - equivalence relations 基于有序关系来挖掘有序规则可看作是粗糙集模型的非等价关系扩展的一个具体应用实例。