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，人们也把他叫作“地形波”。

Quickly was the boat lowered, and she was soon seen bounding on her way over the mountain waves.

人们迅速从大船上放下一只小船，它很快就在如山般的巨浪里颠簸前进。

Long before a flight takes off, atmosphere nerds model where there's most likely going to be mountain wave and other types of turbulence.

早在飞机起飞之前，大气专家就会模拟最有可能出现山脉波和其他类型湍流的地方。

We're not a thousand percent sure that the mountain wave will go that high, but all the meteorologists tell us that it does, so we're going to go out and find out.

我们没有十足的把握说，地形波能够让飞机升到这样的高度，但是所有的气象学家都认为会达到，所以我们要试一试。