This, he says, is where Skylon leaves NASA crafts or the European Space Agency's (ESA) Ariane five rocket, in its wake as they need expensive, disposable rockets to propel them into orbit.

他说，这是天龙和NASA航天飞机以及欧洲航天局(ESA) Ariana5号火箭的不同之处。因为他们认识到，NASA和ESA的做法需要昂贵的一次性火箭才能将航天器送入轨道。

youdao

The Ariane space - rocket project has had a shining success.

阿里安航天火箭项目取得了辉煌的成功。

youdao

The Ariane space-rocket project has had a shining success.

阿里安航天火箭项目取得了辉煌的成功。

youdao

Wednesday's mission was the ninth Ariane rocket launch this year and the 40th consecutive successful launch of an Ariane-4 rocket.

CNN: Ariane rocket orbits U.S. communications satellites

Twenty minutes after liftoff, space officials said the AfriStar satellite weighing 6, 038 pound (2, 739 kg) separated from the Ariane rocket.

CNN: Ariane rocket orbits U.S. communications satellites

Thursday's flawed flight was the first time an Ariane rocket had malfunctioned since Ariane-5's maiden test flight exploded 37 seconds after launch in 1996.

CNN: Ariane rocket puts satellites in defective orbit