反: reverse side演: develop; evolve不变: invariant集: gather; assemble; collect函数: function反演不变泛函: inversion invariant functional不变集: invariant set集函数: set function不变集合: invariant set殆不变集: almost invariant set点集函数: point set function加性集函数: additive set function聚集函数: aggregate function正则集函数: regular set function超加性集函数: superadditive set function次加性集函数: subadditive set function奇加性集函数: singular additive set function聚集函数，集合函数: aggregate function集函数的寻常导数: ordinary derivative of a set function完全加性集函数: totally additive set function有限加性集函数: finitely additive set function不变的函数: invariant function不变函数: invariant function函数不变式: functionally invariant不变分布函数: invariant distribution function
