The length of the part measured on the drawing with a scale of 100:1 is 9 cm, so what is the actual length of the part?
在比例尺是100：1的图纸上量得零件长是9厘米，那么零件的实际长是多少．
<gadget id="calculator">9 / 100</gadget>
<output>9/100 = around 0.09</output>

<result>9/100 = around 0.09</result>