At the upper stage, Windows are recessed into the quadripartite vault ceiling.

在上一阶段，窗子被放在四分拱顶天花板的凹处。

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The stunning display was produced when the rocket's Fregat strap-on boosters separated from its upper stage, and dropped to the ground.

这个令人目眩神迷的美景展示的是火箭的捆绑式助推器和它的上一级脱离并掉回地上时的情景。

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The top half of the rocket is a dummy version, combining its upper stage and the Orion crew capsule, designed and weighted to mimic the real thing.

火箭的上半部分是个仿造品，把第一级和“猎户座”(Orion)乘员舱结合在一起，使其设计及重量与实际情况相若。

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NASA, will test the idea next year, by deploying a 15km tether from the upper stage of a rocket.

ECONOMIST: Spaceflight on a shoestring | The

"Arianespace Flight 142 placed its dual satellite payload in a lower than desired orbit following a problem with the launcher's upper stage, " the statement said.

CNN: Ariane rocket puts satellites in defective orbit

What would be an upper stage, with a crew capsule and its emergency escape mechanism, is actually a simulator made to the correct shape and weight.

BBC: Nasa rocket launches successfully