短語(yǔ)詞組短語(yǔ)mean log deviation 平均對(duì)數(shù)偏差mean squared deviation 均方差mean squared deviation method 均方差決策法mean squared deviation ratio 和標(biāo)準(zhǔn)化尅裡格方差mean square deviation index 均方差指標(biāo)mean square deviation model 均方差模型sliding mean square deviation 滑動(dòng)均方差mean absolution deviation 平均絕對(duì)離差 返回 mean deviation