On a precision part drawing with a scale of 10:1, the measured length of the part is 20 cm. What is the actual length of the part in cm?
在一幅比例尺是10：1的精密零件图上，量得零件的长是20厘米，求零件的实际长是多少厘米？
<gadget id="calculator">10 / 1</gadget>
<output>10</output>

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

<result>2</result>