On a drawing with a scale of 200:1, the measured length of the part is 2 cm. What is the actual length of the part?
在一个比例尺是200：1的图纸上，量得零件的长是2厘米，这个零件实际长多少．
<gadget id="calculator">200 / 1</gadget>
<output>200</output>

<gadget id="calculator">2 / 200</gadget>
<output>1/100 = around 0.01</output>

<result>1/100 = around 0.01</result>