短語詞組短語measurable fuzzy set -valued mapping 可測fuzzy集值映射measurable transversal set 可測橫截集sequence of measurable set 可測集序列non -measurable set [數(shù)]非可測集lebesgue measurable set lebesgue 可測集Jordan measurable set 可求積集product measurable set 積可測集non measurable set 不可測集 返回 measurable set