cuboid fuel tank measures 30 cm in length, 25 cm in width and 30 cm in height. After immersing a steel part in the oil tank, the oil level is 18 cm; if the part is taken out of the oil tank, the oil level drops to 16 cm. What is the volume of this part in cubic centimeters?
一个长方体油箱从里面量长30厘米，宽25厘米，高30厘米．在油箱中浸没一个钢制零件后，油面高度为18厘米；如果把零件从油箱中取出，油面高度就下降到16厘米．这个零件的体积是多少立方厘米．
<gadget id="calculator">18 - 16</gadget>
<output>2</output>

<gadget id="calculator">30 * 25 * 2</gadget>
<output>1_500</output>

<result>1_500</result>