The eruption has left a thin veil of dust in the upper atmosphere.

这次火山喷发在上层大气中留下了一个薄薄的尘土层。

《柯林斯英汉双解大词典》

In the upper parts of the atmosphere, it will burn up.

在大气层的上层，它会燃烧。

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As he travelled, he set up instruments called magnetometers to measure electric currents in the upper atmosphere.

在航行的途中，他一路建立起了许多叫做磁力计的装置，以检测大气上层的电流状况。

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They would gather small amounts of air from the upper atmosphere.

VOA: special.2010.05.26

When it breaks this bond, that chlorine atom, a free chlorine atom comes down and reacts, this is ozone, with the ozone in the upper atmosphere.

当它打破这个化学键，氯原子，一个自由的氯原子下来,和在大气层的上方的臭氧反应，这就是臭氧，在大气上层有臭氧。

麻省理工公开课 - 固态化学导论课程节选

If you get some of these in the upper atmosphere, a photon, an ultraviolet photon, has the energy capable of breaking this bond.

如果你把它放到大气层上，一个光子，一个紫外光光子，有能量可以破坏它的化学键。

麻省理工公开课 - 固态化学导论课程节选

They can cause long-lasting radiation storms in our planet's upper atmosphere and trigger radio blackouts.

MSN: Big sunspot unleashes an intense solar flare

Some amount, certainly, has left the planet through dissociation in the upper atmosphere.

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And with the aid of thrusters and some dead-reckoning, the entry capsule will fly a path through the upper atmosphere.

BBC: Mars Curiosity rover success depends on 'crazy' landing