There is a copper conical part with a base diameter of 2 cm and a height of 4.5 cm. What is the volume of this part in cubic centimeters?
有一个铜制的圆锥形零件，底面直径2厘米，高4.5厘米，这个零件的体积是多少立方厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">(1/3) * 3.14 * 1 * 4.5</gadget>
<output>4.71</output>

<result>4.71</result>