If the length of a part is 8 cm measured on a drawing with a scale of 4:1, what is the actual length of the part in cm?
在比例尺是4：1的图纸上量得一种零件长8厘米，这个零件实际长是多少厘米．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<result>2</result>