纪录片《地球的力量》第二集 大气08:巨大漩涡

To understand the troposphere we live in,

要想了解我们所居住的对流层

you have to think of it not just as gases, but also as a fluid.

那你就不能把大气层只看做气体也应该看做流体

In effect, we live at the bottom of an ocean of air.

实际上，我们生活在气团的海洋中

Just like water, air has turbulence.

就像水一样，空气也有扰动

These clouds are formed as the air creates eddy currents

云的形成就好像是空气产生的涡流

flowing around the tips of mountains.

在山尖流动

Tornadoes are like giant whirlpools.

旋风好像是巨大的漩涡

And just like the ocean, the troposphere even has waves.

就好像是海洋一样对流层甚至也有波浪

This cloud in Queensland, Australia,

澳大利亚昆士兰的这种云

is one of the largest waves in the world.

实际上是世界上最大的波浪

It can reach to over a mile high.

它可以达到2千米高

It's a solitary tropospheric wave

它是一个单独的对流层气流

that combined with the humidity in the region

结合潮湿的气团

takes the form of a visible cloud.

成为云的形式

重点讲解

1、turbulence

动荡;骚乱;骚动;混乱

The 1960s and early 1970s were a time of change and turbulence.

20 世纪整个 60 年代和 70 年代初期是风云变幻、动荡不安的一个时期。

a region often beset by political turbulence.

经常遭受政治动乱的一个地区

(空气、液体或气体的)湍流,涡流，紊流

His plane encountered severe turbulence and winds of nearly two-hundred miles an hour.

他的飞机遭遇强气流和时速近 200 英里的强风。

2、current

(河、湖或海的)水流，潮流

Under normal conditions, the ocean currents of the tropical Pacific travel from east to west.

在正常情况下，太平洋的热带洋流自东向西流。

The couple were swept away by the strong current.

这对夫妻被巨大的水流卷走了。

气流

I felt a current of cool air blowing in my face.

我觉得脸上有一阵冷风吹过。

思潮;潮流;趋向

Each party represents a distinct current of thought...

每个党派代表一种不同的思潮。

A strong current of nationalism runs through ideology and politics in the Arab world.

一股强烈的民族主义思潮涌入阿拉伯世界的思想体系和政治体系。

现时的;当前的;进行中的

The current situation is very different to that in 1990.

当前的形势与1990年截然不同。

He plans to repeal a number of current policies.

他计划废除一些当前的政策。