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

He says, this is not what advanced technique, we are not to be in make the rocket that enter a month.

他说，这并非什么先进技术，我们不是在造登月火箭。

youdao

He says, this is not what advanced technique, we are not to be in make the rocket that enter a month.

他说，这并非什么先进技术，我们不是在造登月火箭。

youdao