(1/1000) hectare is how many square meters.
(1/1000)公顷就是多少平方米．
<gadget id="calculator">1 / 1_000</gadget>
<output>1/1_000 = around 0.001</output>

<gadget id="calculator">(1/1_000) * 10_000</gadget>
<output>10</output>

<result>10</result>