A postal delivery truck has a rectangular parallelepiped compartment. Measured from the inside, the length is 3m, the width is 2.5m, and the height is 2m. What is its volume in cubic meters?
某邮政运货车，车厢是长方体．从里面量长3m，宽2.5m，高2m．它的容积多少立方米？
<gadget id="calculator">3 * 2.5 * 2</gadget>
<output>15</output>

<result>15</result>