An emergency relief valve is arranged on the air reservoir or the wind pipe connected with the air reservoir.

储气罐或连接储气罐的风管还配装有安全阀。

youdao

youdao

After a few more climbs, once to the top of the domed reservoir, my fear seemed to evaporate in the warm midnight air—I had simply been out of practice.

爬过几次后，只要爬到半球形蓄水池顶，我的恐惧似乎就在午夜温暖的空气中蒸发了——原来，只是我久不练习而已。

youdao

The air was held in a reservoir and when the pressure reached 100 PSI, a modified irrigation valve was triggered to launch a tennis ball that had been stuffed down the barrel.

FORBES: The Supersonic Ping-Pong Gun

Used water is treated and then either safely disposed of, reused for industrial purposes or air-conditioning, or mixed with reservoir water for drinking.

ECONOMIST: Every drop counts | The

One forest fire near Denver last summer dumped tons of mud and soot into the city's largest reservoir for drinking water and created the worst air pollution in the area's history.

FORBES: Fact and Comment