Using a cylindrical metal block with a bottom area radius of 6 decimeters and a height of 8 decimeters, how many conical parts can be melted and cast into a conical part with a bottom surface radius of 4 decimeters and a height of 3 decimeters?
用一个底面积半径是6分米，高8分米的圆柱形金属块，熔铸成底面半径为4分米，高3分米的圆锥形零件，可熔铸多少个？
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36 * 8</gadget>
<output>904.32</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 3</gadget>
<output>50.24</output>

<gadget id="calculator">904.32 / 50.24</gadget>
<output>18</output>

<result>18</result>