A piece of iron with a volume of 20 cubic centimeters completely enters a cuboid container with a length of 5 cm and a width of 2 cm (there is a lot of water in the container), how many centimeters will the water level rise?
一块体积为20立方厘米的铁块完全进入一个长5厘米，宽2厘米的长方体容器中(容器里有较多的水)，水面会上升多少厘米？
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<result>2</result>