奥巴马已经承诺为美国航空航天局提供30亿美元,用于开发重型飞船火箭驱动装置。
It's a remarkable performance by the launch vehicle, every parameter was on the dot...发射器的表现十分出色,每一个参数都十分准确。
When the first Long March 5 is delivered to Wenchang in 2014, America may not even have a space-launch vehicle of its own.2014年,当长征5号运往文昌之时,美国甚至可能都没有自己的航天运载器。