cuboid glass container, measured from the inside, has a length and width of 2 decimeters. Pour 5.4 liters of water into the container, and then sink a pear into the water. At this time, the water depth in the container is measured to be 1.5 decimeters. What is the volume of this pear?
一个长方体玻璃容器，从里面量，长、宽均为2分米，向容器内倒入5.4升水，再把一个梨沉入水中，这时量得容器内的水深1.5分米．这个梨的体积是多少？
<gadget id="calculator">5.4 / 2 / 2</gadget>
<output>1.35</output>

<gadget id="calculator">1.5 - 1.35</gadget>
<output>0.15</output>

<gadget id="calculator">2 * 2 * 0.15</gadget>
<output>0.6</output>

<result>0.6</result>