There are 23 flood discharge holes in the Three Gorges flood discharge dam. The width of each flood discharge hole is 21 meters and the height is 126 meters. rice?
三峡泄洪坝共有23个泄洪孔，每个泄洪孔的宽是21米，高是126米，泄洪时，流过泄洪孔的水流速度是1.8米/秒，每个泄洪孔每秒能泄洪多少立方米？
<gadget id="calculator">126 * 21 * 1.8</gadget>
<output>4_762.8</output>

<result>4_762.8</result>