短語詞組短語mean log deviation 平均對數(shù)偏差mean squared deviation 均方差mean squared deviation method 均方差決策法mean squared deviation ratio 和標準化克里格方差mean square deviation index 均方差指標mean square deviation model 均方差模型sliding mean square deviation 滑動均方差mean absolution deviation 平均絕對離差 返回 mean deviation