A canal is 2.7 kilometers long. How many centimeters should it draw on a drawing with a scale of 1:30000?
一条水渠长2.7千米，把它画在比例尺是1：30000的图纸上，应画多少厘米？
<gadget id="calculator">1 / 30_000</gadget>
<output>1/30_000 = around 0.000033</output>

<gadget id="calculator">2.7 * 100_000 * (1/30_000)</gadget>
<output>9</output>

<result>9</result>