They get up into high altitude air currents.

它们可以进入气流飞行。

Flying thousands of feet up in the sky, you know, that's not safe!

在几千米飞行可不安全！

Yaboynath asks, " Why do commercial planes fly at 35,000 feet? "

Yaboynath 问：“商用飞机要在 35000 英飞行？”

They discovered that the birds have a highly specialized strategy for staying aloft.

他们发现，军舰鸟的飞行拥有度专业化的策略。

He gave demonstration flights at heights of 90 meters.

他在90米进行了演示飞行。

It was flying at a height of around 10-thousand meters.

事发时飞机在1万米正常飞行。

Besides the airport crowds and stress, travelling at a high altitude has real effects on the body.

除了机场的拥挤和压力以外，飞行确实会对身体产生实质性影响。

On Saturday, a missile took down an object flying at 40,000 feet over Central Yukon,way up in northwestern Canada.

周六，一枚导弹击落了一个在加拿大西北部育中部地区4万英飞行的物体。

High-flying drones, like those employed by the police for surveillance, will normally be out of range of such activity.

飞行的无人机，比如那些被警方用于监视的无人机，通常会超出这种活动的范围。

Hang gliders, paragliders and all kinds of high flyers went soaring through the air for a wide range of prizes.

悬挂式滑翔机、滑翔伞以及各种各样的飞行装备在中翱翔，来获得各种各样的奖品。

Those objects were flying at around forty thousand feet and had balloon-like features with a small metal cylinder underneath officials said.

官员们说，这些物体在大约4万英的飞行，具有气球状的特征，下面有一个小金属圆筒。

Attached with a powerful zoom camera, the Shark drone can make out text while flying more than a mile above ground.

配有强大的变焦摄像头，“鲨鱼”无人机可以在离地面超过一英里的飞行时辨认文字。

Dinosaurs used air sacs to move air along their massive necks. Birds use air sacs to stay aloft for long periods.

恐龙利用气囊使气在庞大的颈部流动。鸟类利用气囊保持长期飞行。

Damien Jacques is an expert in remote sensing - the use of satellites or high-flying aircraft to collect information about the Earth.

达米安？雅克是一位遥感专家，即利用卫星或飞行器收集地球信息。

These high-altitude bombers, though, come in at 8,000 to 14,000 feet, somewhere in there.

这些轰炸机的飞行度在8000到14000英之间。

Look, at the end of the day, Apple's apple is flying at 30,000 feet.

看, 一天结束的时候, 苹果的苹果在3万英的飞行。

Sam's in control here, and we are cruising at 18,000 feet.

萨姆在掌控局面，我们现在以一万八千英的平稳飞行。

The plane levelled out at 30,000 feet.

【level】飞机在 3 万英的水平飞行。

The aircraft was flying at a height of 10,000 metres.

【height】飞机在 1 万米飞行。

Meanwhile, high above the field, six flying machines whirred and wheeled.

与此同时，在场地的，六架飞行器呼啸而过。