Above the troposphere, seen as a light blue band with white clouds, is the stratosphere, part of the Earth's atmosphere where airplanes fly and some hardy bacteria float.

对流层上面，淡蓝色有白色云的是平流层，飞机飞行所在的地球大气层，某些顽强的菌类在这里漂浮。

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Some of his greatest achievements include the Kamikaze theft and crash landing of three airplanes (with no flight training) as well as commandeering a couple boats.

他最大的成就包括神风战斗机盗窃事件以及三架飞机的紧急着陆(此前未接受过飞行培训)，以及盗取几艘快艇。

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But it also revealed that, with some practice, the airplanes and ground troops could work well together.

但结果也表明，经过练习，飞机和地面部队能够很好的配合。

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"I did see, you know, some parallels between what I had to deal with in flying airplanes and flying the space shuttle and what I had to deal with in handling this situation, " Kelly told Morgan in 2011.

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It would likely cost millions of dollars to equip an aircraft with the system, industry officials estimate, but Honeywell estimates fuel savings for some airplanes could amount to more than 3% annually.

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In some cases, the two-ticket trip puts you on the same airplanes that you would have booked with a one-ticket itinerary.

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