The reason for the division of Class E and Class A airspace stems from the type of planes operating in them.

E 类和 A 类空域的划分取决于在这两类空域飞行的飞机类型。

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A passenger peering out of the window might not even see the other planes.

乘客往窗外看时，甚至可能看不到其他飞机。

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She has leapt from planes and even off the top of a waterfall.

她曾从飞机上跳下，甚至从瀑布顶上跳下来。

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British ships,with the help of planes launched from an aircraft carrier, destroyed a powerful German battleship, the Bismarck on May 27,1941.

VOA: special.2011.06.09

But in sigma orbitals, you have no nodal planes along the bond axis, so if we had a nodal plane here, we'd see an area where the wave function was equal to zero.

但在sigma轨道里，沿着轴向是没有节点平面的，如果我们有个节点，我们就会看到某个地方波函数等于0。

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Air traffic used to be everything flew to places local to it but now there's a system of hubs, Chicago O'Hare for instance or Newark where planes fly through.

以前的飞机都是飞往它的所属地,但现在的航空运输是一个由交通枢纽组成的系统，例如飞机会途经芝加哥O'Hare机场或Newark机场。

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The boats will rendezvous with about a dozen civilian planes for a memorial service at sea scheduled for approximately 3:30 p.m.

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For example, by keeping a few extra planes on hand a carrier could accommodate passengers stranded by other airlines following a blizzard.

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"I've flown in a lot of planes and that was a phenomenal landing, " said passenger Fred Berretta said.

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