This makes a powerful exhaust through the back of the rocket and pushes the rocket up.

这制造了一个从火箭后部排出的强有力的气体，然后推动火箭上升。

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Bathed in xenon spotlights, the white spaceship, attached to its twin solid rocket boosters and orange external fuel tank, crept 3.4 miles on the back of an enormous tractor called the Crawler.

沐浴着氙气聚光灯光，白色的飞船，带着一对固体火箭推进器和橙色外挂燃料箱，在称为“爬行者”的巨大拖拉机上缓慢行驶了3.4英里。

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Whatever happened to the space age as imagined back in the 1950s and early ’60s, when science fiction writers and rocket scientists spun tales of travel out in the solar system and beyond?

回想一下20世纪50年代和60年代初，科幻作家和火箭科学家们编织太阳系或更远的太空旅行故事时，太空时代究竟发生了什么？

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To be sure it reaches the necessary speeds, the X-43A will be attached to a booster rocket and ride piggy back on a B-52 to 24, 000 feet.

BBC: Mach 10 scramjet prepares for launch

The intention was to give the US a crew-carrier and rocket technology that could go beyond low-Earth orbit to more distant targets, back to the Moon and further.

BBC: Obama reviews post-shuttle plans

With the same laid-back verve that has characterized his rocket rise to the rarest reaches of the rap world, Wiz took the audience through his latest work, occasionally punctuating the proceedings with his machine-gun chuckle.

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