樣本內(nèi)變異 within samples: 樣本內(nèi)within variation: 組內(nèi)變差within-samples sum of squares: 樣本內(nèi)平方和variation within laboratory: 組內(nèi)變異性within group variation: 組內(nèi)變異下載手機詞典可隨時隨地查詞查翻譯