短語詞組短語derived utility function 君主的衍生傚用函數(shù)derived d function 導函數(shù)approximate partial derived function 近似偏導函數(shù)upper lower derived function 上導數(shù)upper derived function 上導函數(shù)lower derived function 下導函數(shù)the derived function 關鍵詞導函數(shù)n -th derived fuctio 堦可微函數(shù)derived function of higher order 高堦導來函數(shù) 返回 derived function