The baby spiders felt the warm updraft.

蜘蛛娃娃们感觉到温暖的上升气流。

We're leaving here on the warm updraft.

“我们在乘着这温暖的上升气流离开这里。

Rising air is the first ingredient needed for a tornado to develop.

上升气流是形成龙卷风所需要的要素。

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

之后，机将利用上升气流翔，人们也把他叫作“地形波”。

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

上升气流也极其危险，因为它可以把机推到危险的高度。

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

对抗着上升气流和酸云, 这些不为人知的先驱者已经几乎环绕这颗行星周。

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

程度越大，并且形成风暴的云团越大时，那些上升气流也就越强。

Upward, moving, like a leaf in an upcurrent of warm air.

我在向上飘浮，移动，有如上升热气流中的片树叶。

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升气流吸走的剥落的人造草皮。

Did you make a solar updraft tower of your own?

您自己制作了太阳能上升气流塔吗？

Condensation releases heat, and heat becomes the energy that drives huge upward drafts of air.

释放热量，热量成为驱动大量气流上升的能量。

We were caught in a strong updraft.

我们陷入了强烈的上升气流中。

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

当这种情况发生时， 当暖空气上升时会产生上升气流。

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

我们要建造叫做太阳能上升气流塔的东西。

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

和海鸥， 在上升气流中嬉戏。 在爱尔兰， 您靠左行驶。

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

“上升气流”只是指种空气向上移动的风。

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升气流塔来发电！

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

当雷暴上升气流失去能量时， 龙卷风被认为会消失。

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

那么，你能猜出我们的太阳能上升气流塔会做什么吗？

As the air climbs, it can change direction and start to move more quickly.

当气流上升的时候，它可以改变方向并且开始以更快的速度移动。