Because the air is substantially thinner at high altitudes there is substantially less oxygen.

因为在高海拔地区，空气要稀薄得多，所以氧气含量很少。

They get up into high altitude air currents.

它们可以进入高空气流飞行。

Many of kyrgyzstan natural wonders are very rural and in high altitudes, so the timing of your visit is crucial.

吉尔吉斯斯坦的许多自然奇观位置偏远，海拔偏高，所以选择旅行时间至关重要。

But the goal here is to keep making this bigger and more effective so it can reach out further, hit targets further away, engage bigger missiles at higher altitudes and you know what that's all about.

里的目标继续使它变得更大，更有效，以便它可以进一步伸展，进一步击中目标，在更高的高度接合更大的导弹，你知道怎么回事。

Which of these cloud types is typically found at the highest altitude?

些云类型中哪个通常在最高海拔处被发现的？

One of the only kind of animals living in this high altitude.

该地唯一一种生活在种高海拔地区的动物。

Among them are requiring the climbers themselves to have training and experience at high altitudes.

其中包括要求登山者自己具备在高海拔地区的训练和经验。

A large plane with padded walls flies to high altitude and then goes into a nosedive- or a fast and sudden fall - which creates short periods of weightlessness.

机舱壁经过填充的飞机在到达高海拔之后突然俯冲会造成短时间的失重。

Before the age of rockets and the great space race, we were using high altitude balloons to take people to the edge of space.

在火箭时代和激烈的太空竞赛之前，我们使用高空热空气球把人们带到太空边缘。

They believe there's methane gas around Pluto that's more concentrated at its higher altitudes and that's where it forms froth on the dwarf planet's mountain tops without the need for wind or precipitation.

科学家们相信冥王星周围的甲烷气体更集中在它的高海拔地区，在那里不需要风或降水，在矮行星的山顶就能形成冰霜。

It's high altitude so the temperatures are quite cool in the day.

那里海拔很高，白天的气温非常凉爽。

This made them likely to crash under the enormous stress of high altitudes.

使得它们很可能在高空的巨大压力下会破裂。

People in the Ethiopian highlands have adapted to living at high altitudes.

埃塞俄比亚高地的人们已经适应了高海拔地区的生活。

Since the atmospheric pressure is a lot lower in high altitudes, it would be freezing cold if you were flying above the clouds.

在高海拔地区，由于大气压力很小，气温会降低。如果你在云层上面飞行。

People do get high altitude pulmonary edema and high altitude cerebral edema here as well.

里也会发生高原肺水肿和高原脑水肿。

The latest incident was a high altitude object shot down on Sunday by an F- 16 over Lake Huron which lies between Michigan and Ontario.

最近的一起事件周日，一架F- 16战斗机在密歇根州和安大略省之间的休伦湖上空击落了一个高空物体。

At this high altitude you can clearly see storm churn white caps in the ocean.

在么高的海拔上，你仍然可以清楚地看到在海洋风暴中被搅动起来的白色帽子。

Polaris Dawn will reach its highest altitude on its first day.

“北极星黎明号”将在第一天达到最高高度。

Experts say La Nina tends to reduce high altitude winds that weaken hurricanes.

专家表示，拉尼娜现象往往会减少高空风，从而削弱飓风。

Higher altitude combined with the bulge creates the weakest gravity anywhere on the planet.

高度和纬度造就了地球上重力最弱的地区。