So far this year, the average flow in Itaipu is 6,800 cubic meters per second.

今年到目前为止，伊泰普大坝的平均流量为每秒6800立方米。

That's because an atmospheric river can transport up to 15 times the average flow of water found at the mouth of the Mississippi River.

这是因为大气河流输送的水是密西西比河口平均流量的15倍。

In fact, researchers say that for each additional 1.8 degrees Fahrenheit of warming, the river's average flow can drop by about 9%.

事实上，研究人员表示，气温每升高 1.8 华氏度，河流的平均流量就会下降约 9%。

What's more, drivers tend to accelerate too rapidly out of a slowdown, meaning they try to drive faster than the average flow of traffic downstream of them.

更糟糕的是，司机在减速后 往往会加速过快，也就是说他们会比后方的平均车流开得更快。

The National Oceanic and Atmospheric Administration says these weather systems carry as much water vapor as the average flow of water at the mouth of the Mississippi River.

美国国家海洋和大气管理局表示，这些天气系统携带的水汽量相当于密西西比河入海口的平均流量。

But based on tree ring data, we know for the last 900 years that the average flows in the Colorado River Basin are only 14.3 million acre feet.

- 但根据树木年轮数据，我们知道在过去 900 年中，科罗拉多河流域的平均流量仅为 1430 万英亩英尺。

For comparison, the Mississippi basin in the united states has an average annual flow of nearly 503, 000 gigalitres a year which is more than 22 times the flow of water that Australia's greatest river system has got.

相比之下，美国密西西比河流域的年均流量接近 503000 千亿升，是澳大利亚最大河流水系流量的 22 倍多。