短語詞組短語optimality criterion condition 最優(yōu)性條件optimality criterion method 優(yōu)化準(zhǔn)則法advanced optimality criterion method 優(yōu)化準(zhǔn)則法average criterion optimality inequality 平均準(zhǔn)則最優(yōu)不等式criterion of optimality 最佳化準(zhǔn)則 返回 optimality criterion