In addition, an air launch promises a lot more scope to find a good "launch window" to get the spacecraft into orbit.

此外，空基发射可以为寻找“发射窗口”将航天器送入轨道，提供更多的机会。

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The essential characteristics, flight sequence, trajectory design and optimal analysis for air launch vehicle are discussed.

讨论了空中发射运载火箭的基本特点、飞行方案、发射轨道设计和优化分析方法。

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It later emerged that the spacecraft’s heat shield had been damaged on launch, letting superheated air inside and tearing it apart.

后来证实，航天飞机的外层热防护在发射时就被损坏，使得超热气体渗入机舱内，导致机毁人亡。

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Air Force pilot Gordon Cooper became an expert on the Redstone Rocket that would launch Mercury astronauts on short training flights.

VOA: special.2009.06.10

Also, once it is on its own, Chandra will rely on a booster rocket that failed during a classified U.S. Air Force launch in April 1999.

CNN: Collins

According to Allen and his partners, this air-launch-to-orbit system is far less expensive and far more flexible than traditional ground launches, which are still used by some private companies for satellite launches.

BBC: The futurist: The world��s largest plane

The hope is that taking to the air with launch customers such as Singapore Airlines will lead to further orders from other carriers, such as Cathay Pacific and British Airways, which fly busy long-haul routes.

ECONOMIST: The biggest shareholders in EADS are preparing to sell up