The baby spiders felt the warm updraft.

蜘蛛娃娃们感觉到温暖的上。

We're leaving here on the warm updraft.

“我们在乘着温暖的上离开里。

From there, they use natural updrafts, also called mountain waves, to soar to the sky.

之后，飞机将利用上飞翔，人们也把他叫作“地形波”。

The more condensation and the bigger the storm clouds grow, the more powerful those updrafts become.

凝结程度越大，并且形成风暴的云团越大时，那些上也就越强。

Battling violent updrafts and acid clouds, these non-stick pioneers were swept nearly halfway round the planet.

对抗着上和酸云, 些不为人知的先驱者已经几乎环绕颗行。

An updraft is also extremely treacherous because it can push an aircraft upward to dangerous altitudes.

上也极其危险，因为它可以把飞机推到危险的高度。

What you're looking at is the peeled back artificial turf that was sucked up by the powerful updraft of this tornado.

你现在看到的是被龙卷风强大的上吸走的剥落的人造草皮。

AND THE GULLS, PLAYING IN THE UPDRAFTS. IN IRELAND, YOU DRIVE ON THE LEFT.

和海鸥， 在上中嬉戏。 在爱尔兰， 您靠左行驶。

We're going to build something called a solar updraft tower.

我们要建造个叫做太阳能上塔的东西。

As that happens, an updraft is created when the warm air rises.

当种情况发生时， 当暖空上时会产生上。

It takes experience and skill to weave in and out of the fire's hot updrafts.

穿梭于火热的上中需要经验和技巧。

So the updrafts are so severe, right?

所以上非常强烈，对吧？

We were caught in a strong updraft.

我们陷入了强烈的上中。

" Updraft" just means a kind of wind where air moves up.

“上”只是指种空向上移动的风。

Tornadoes are thought to die off when thunderstorm updrafts lose energy.

当雷暴上失去能量时， 龙卷风被认为会消失。

There are some places in the world where they actually use giant solar updraft towers to generate electricity!

世界上有些地方实际上使用巨大的太阳能上塔来发电！

So, can you guess what our solar updraft tower will do?

那么，你能猜出我们的太阳能上塔会做什么吗？

Now, imagine updrafts so strong that not even the raindrops can fall out, and it just stays up there.

现在， 想象下有那么强的上， 连雨滴都无法落下，只能直停留在那里。

It's all because of the updrafts.

都是因为上的作用。

Did you make a solar updraft tower of your own?

您自己制作了太阳能上塔吗？