短語詞組短語multinomial expansion coefficient method [數(shù)]多項(xiàng)式展開系數(shù)法multinomial of integer coefficient 整系數(shù)多項(xiàng)式multinomial with integral coefficient 整系數(shù)多項(xiàng)式multinomial with rational coefficient 有理系數(shù)多項(xiàng)式integer coefficient multinomial 整系數(shù)多項(xiàng)式 返回 multinomial coefficient