短語(yǔ)詞組短語(yǔ)weighted d arithmetic mean 加權(quán)算術(shù)平均weighted arithmetic mean method 加權(quán)算術(shù)平均法Lo weighted arithmetic mean 加權(quán)算術(shù)平均值Method of Weighted Arithmetic Mean 加權(quán)算術(shù)平均法arithmetic weighted mean 算術(shù)加權(quán)平均值;加權(quán)算術(shù)均數(shù) 返回 weighted arithmetic mean