短語詞組短語Dynamic order -statistic 動態(tài)次序統(tǒng)計first -order statistic 一階統(tǒng)計量high -order distribution statistic 高階分布特征統(tǒng)計量rank -order statistic 秩序統(tǒng)計量three -order statistic 三階統(tǒng)計量fractional lower -order statistic 分數低階統(tǒng)計量 返回 order-statistic