A conical grain pile has a bottom circumference of 6.28 meters and a height of 0.9 meters. If it is put into a cylindrical grain storehouse with a bottom area of 2 meters, how high can it be piled up?
一圆锥形谷堆底面周长是6.28米，高0.9米，若把它装入一个底面积是2米的圆柱形粮囤里，可以堆多高？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

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

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

<gadget id="calculator">0.9 / 2</gadget>
<output>0.45</output>

<gadget id="calculator">(1/3) * 3.14 * 1 * 0.45</gadget>
<output>0.471</output>

<result>0.471</result>