Most Clusteranalyses are based on mathematic method at present and it is not convenient to process the symbol attributes in relational space.
目前大多数聚类分析都是基于数学方法进行处理，但是对于关系空间中的符号属性处理却不太方便。
This article refers to quanltity and unit, term and symbol, numeral and quanltity, and the mathematic operation relating to them. Aspects needing attentions in use are discussed.
本文就量与单位，名称与符号，数值和量的运算以及运用中应注意的问题进行了扼要介绍。
This article refers to quanltity and unit, term and symbol, numeral and quanltity, and the mathematic operation relating to them. Aspects needing attentions in use are discussed.
本文就量与单位，名称与符号，数值和量的运算以及运用中应注意的问题进行了扼要介绍。
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