短語詞組短語Variation ratio analysis 變率分析variation spectral analysis 譜分析multi -variation statistical analysis 多變量統(tǒng)計分析climatic variation analysis 氣候變化分析Variation in cylinders analysis 多缸一致性分析variation analysis in disparity 差距變動分析statistical variation analysis 統(tǒng)計變異分析reliability variation analysis 可靠性變量分析minimum variation analysis 最小方差法 返回 variation analysis