In a cylindrical water storage bucket, if a section of conical steel with a bottom radius of 4 cm is put into the water, the water level in the bucket will rise by 5 cm. If the bottom surface radius of the cylindrical water storage bucket is 8 cm, the conical What is the volume of the bar in cubic centimeters?
在一圆柱体储水桶里，如果把一段底面半径为4厘米的圆锥形钢材全部放入水里，桶里的水面就上升5厘米，如果圆柱体储水桶的底面半径是8厘米，这段圆锥形钢材的体积是多少立方厘米？
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64 * 5</gadget>
<output>1_004.8</output>

<result>1_004.8</result>