A cylindrical grain storehouse has a bottom area of 3.5m**2 and a height of 60cm. The mass of rice per cubic meter is about 700kg. How many kilograms is the mass of rice stored in this grain storehouse?
圆柱形粮囤，底面面积3.5m**2，高为60cm，每立方米稻谷质量约为700kg，这个粮囤存放的稻谷的质量约为多少千克？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">3.5 * (3/5) * 700</gadget>
<output>1_470</output>

<result>1_470</result>