短語詞組短語extraction n of root 開方extraction of a root 開方;求一個數(shù)的方根的運算extraction of cubic root 開立方extraction of cube root 叫做開立方;開立方根;開立方extraction of dental root [口腔]牙根拔除術(shù)extraction of square root 開平方;開平方根extraction of a root evolution 求一個數(shù)的方根的運算extraction of the square root 開平方extraction of the cubic root 開立方 返回 extraction of root