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

因为在海拔地区，空要稀薄得多，所以氧含量很少。

They get up into high altitude air currents.

它们可以进入空流飞行。

To increase your altitude or set off your dignified manner.

增加你的度，衬托你的威仪。

The ICBM reached an altitude as high as 2,800 miles.

这枚洲际导弹到达了2800英里的空。

It told of how scientists rode a balloon to an altitude of 80,000 feet to make telescope observations of Venus's atmosphere and how their discovery of water raised hopes that there could be living things there.

它讲述了科家如何把球送到八万米海报处让显微镜观测金星的大，以及他们发现水的这件事情是如何燃起那里可能有生命存在的希望的。

But staying at that altitude will be tough.

但要继续站在这个峰困难重重。

This helps the climbers acclimate to the increase in altitude.

这样有助于登山者适应海拔的上。

When I told her that our journey would begin at an altitude of more than 5,000 metres, she seemed to be excited about it.

当我告诉她我们的旅行将从5000多米的的地出发时，她似乎显得很兴奋。

Most people can only stay minutes at that altitude without extra oxygen supplies.

大多数人在没有额外供氧的情况下只能在那个度停留几分钟。

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，所以择旅行时间至关重要。

But as it rises, the temperature starts to drop again, because the atmosphere gets cooler as you go higher - by roughly one degree centigrade for every 100m of altitude.

但随着暖空，温度又开始下降，因为越往上越冷——大约每上100米就会下降1摄氏度。

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

这是该地唯一一种生活在这种海拔地区的动物。

These fighter jets are very automated when it comes to just holding altitude and heading.

当只需要保持度和航向的时候，这些战斗机是度自动化的。

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海拔地区的训练和经验。

After three days in orbit at an altitude of about 350 miles over our heads, four non-astronauts splashed back down to earth on Saturday evening.

在350英里空轨道飞行三天之后，四名非宇航员于周六晚着陆。

They'd rather stay below deck and keep a more grounded altitude about the viewing party above even if the edge is the height of observation posts.

跟上方的观光者们比起来，他们宁愿待在平台下面更低度地方，即使那个边缘有着观察哨的度。

It would also explain why it's been seen in so many different counties because at that altitude it would be seen from - - from hundreds of miles.

这也可以解释为什么在这么多县都能看到它，因为在那个度，它可以被从数百英里远看到。

As the altitude rises the highlands offer a cool haven.

随着海拔，这片地提供了凉爽的栖息地。

This thing's designed to carry rockets loaded with satellites so they can be launched from an altitude of 35,000 feet into orbit.

这个东西被设计用来运载载有卫星的火箭，这样它们就可以从35000英尺的度发射到轨道上。

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.

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