After cutting a cylinder into the largest cone, the volume is 9.42 cubic centimeters, how many cubic centimeters is the volume cut off?
把一个圆柱削成最大的圆锥体后，体积是9.42立方厘米，削掉的体积有多少立方厘米．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">9.42 * 2</gadget>
<output>18.84</output>

<result>18.84</result>