cylindrical steel part has a base area of 5 cm2 and a length of 8 cm. If each cubic centimeter of steel weighs 7.8 kilograms, how many grams does this part weigh?
一个圆柱形状的钢制零件，底面积是5平方厘米，长是8厘米．如果每立方厘米的钢重7.8千克，这个零件重多少克？
<gadget id="calculator">5 * 8 * 7.8</gadget>
<output>312</output>

<result>312</result>