Our biological team only planted 200 sunflowers, and each plant can harvest 0.32 kilograms of sunflower seeds. If 0.21 kilograms of oil can be extracted per kilogram of sunflower seeds, how many kilograms of oil can be extracted from the sunflower seeds we harvest?
我们生物小组只种了200株向日葵，每株可收葵花籽0.32千克，如果每千克葵花籽可以榨油0.21千克，那我们收的葵花籽大约可以榨油多少千克？
<gadget id="calculator">0.32 * 200 * 0.21</gadget>
<output>13.44</output>

<result>13.44</result>