The length of a machine part is 0.8 cm. On a drawing with a scale of 40:1, what is its length in centimeters?
一个机器零件的长度是0.8厘米．在比例尺是40：1的图纸上，它的长度是多少厘米？
<gadget id="calculator">40 / 1</gadget>
<output>40</output>

<gadget id="calculator">0.8 * 40</gadget>
<output>32</output>

<result>32</result>