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第一个要素。

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

释放，成为驱动大气流上升的能。

The baby spiders felt the warm updraft.

蜘蛛娃娃感觉到温暖的上升气流。

We're leaving here on the warm updraft.

“我在乘着这温暖的上升气流离开这里。

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

之后，飞机将利用上升气流飞翔，人也把他叫作“地形波”。

That's a column of warm, rising air as well.

那也是一股温暖的上升气流。

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一周。

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。

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，因为它可以把飞机推到危险的高度。

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。

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。

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。

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

我要建造一个叫做太阳能上升气流塔的东西。

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。

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

穿梭于火的上升气流中需要经验和技巧。

So the updrafts are so severe, right?

所以上升气流非常强烈，对吧？

We're going to get some farts that go up, some that go down.

我会遇到一些上升的气流，也会有一些下降的。

As the air rises, so it cools.

随着气流的上升 温度也逐渐下降。

We were caught in a strong updraft.

我陷入了强烈的上升气流中。

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

“上升气流”只是指一种空气向上移动的风。