Rockets expel the stuff at altitudes three times as high - in the stratosphere more than 40 kilometres above sea level.

而火箭排出物三倍高于飞机- - -在海拔40多千米的平流层。

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One giant leap from the stratosphere. The 1960 high-dive of Joseph Kittinger, part of a U.S. Air Force program designed to test whether pilots could survive high-altitude bailouts.

这是1960年 高空跳落测试人员人员约瑟夫·凯庭尔的某次超级跳跃，他是美国空军为测试飞行员如何能够由高空跳伞幸存而设计的一项紧急援助项目中的“一部分”。

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Back in 1996, Haigh showed that the temperature of the stratosphere influences the passage of the jet stream, the high-altitude river of air passing from west to east across Europe.

1996年，Haigh指出，平流层的温度影响了喷流的一段，而喷流是横跨欧洲自西向东的一条高海拔气流通道。

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The sky high Stratosphere offers four high-altitude outdoor thrill rides of its own, including the newest, SkyJump, a controlled free fall - from 108-floors up!

FORBES: Record Breaking Roller Coasters

They involve an abrupt jump in temperatures high in the stratosphere, which can bring snow.

BBC: Freezing weather forecast for weekend

Runaway climate change could spur an island nation doomed to drown under rising seas or a wealthy entrepreneur with do-good intentions to deliberately inject sunlight-reflecting particles high into the stratosphere in a bid to cool the planet, the World Economic Forum warns.

MSN: The Maya may have sacrificed earliest domestic turkeys