For the discharge of water!

排水用的嘛！

youdao

In this way, a higher degree of suction is obtained in order to increase the discharge of water through the overflow (2).

所有这些都为了提供更大的吸力，以便增加水通过溢流元件(2)内部的流量。

youdao

It might have been supposed that the discharge of water was at this place, for the extremity of the lake was almost on a level with the edge of the plateau.

湖水也许就是从这里流出去拘，因为湖岸几乎和高地的边缘一样高。然而还是找不到任何排水的痕迹。

youdao

They used satellite data concentrating on Greenland's coastline to examine how fast the thinning is happening, and they have found that the flow-speed of 12 glaciers, which together account for about half the discharge of water from the ice sheet, is increasing and fast.

ECONOMIST: Climate change (II)

Montana's Department of Environmental Quality and the U.S. Environmental Protection Agency are in negotiations with Blixseth over alleged violations of the Clean Water Act, including the discharge of waste without a permit and the deposit of fill material in wetlands.

FORBES: Private Powder

The Japanese government alarmed neighboring countries in April last year when it approved the discharge of 10, 000 tons of low-level radioactive water from the plant as Tepco ran out of space to store the water used to cool reactors.

WSJ: New Leak at Japan Reactor Threatens Ocean