If a cylindrical steel with a length of 4 meters is cut into 2 sections on average, the surface area increases by 6.28 square centimeters, what is the volume of each section of steel in cubic centimeters?
把一根长4米的圆柱形钢材平均截成2段，表面积增加了6.28平方厘米，每段钢材的体积是多少立方厘米．
<gadget id="calculator">6.28 / 2</gadget>
<output>3.14</output>

<gadget id="calculator">100 / 2</gadget>
<output>50</output>

<gadget id="calculator">3.14 * 4 * 50</gadget>
<output>628</output>

<result>628</result>