A fruit farmer plants pear trees on a barren slope of 2 hectares. Each pear tree covers an area of 8 square meters, and each pear tree can harvest 72 kilograms of pears. How many kilograms of pears can these pear trees harvest in total?
一个果农在2公顷的荒坡上种梨树，每棵梨树占地面积8平方米，每棵梨树可收梨72千克，这些梨树共可以收梨多少千克？
<gadget id="calculator">2 * 10_000</gadget>
<output>20_000</output>

<gadget id="calculator">20_000 / 8</gadget>
<output>2_500</output>

<gadget id="calculator">2_500 * 72</gadget>
<output>180_000</output>

<result>180_000</result>