This paper extends interval grey number, gives the definition of complex interval grey number, and discusses its operation and characteristics.
本文将区间灰数进行了推广，给出了复区间灰数的定义，并讨论了它的运算及其性质。
The consistency of the interval number judgement matrix is a difficult problem in the study of the uncertain Analytic Hierarchy Process (AHP), and it still has not a normative definition by far.
区间数判断矩阵的一致性问题一直是不确定性层次分析法(ahp)的研究难点，至今仍没有一个统一而且规范的定义。
Interval is a basic concept of the basic music theory. In recent years, the definition, classification and nature of some concepts in the music theory books are worth discussing.
音程，是音乐基础理论中的一个基本概念，近年来一些乐理书中对其中若干概念的称谓、定义、种类、性质等的解释有值得商榷之处。
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