Ramjet engines have traditionally used liquid fuel which is mixed with atmospheric air and burned to provide thrust for high-speed flight.
传统的冲压喷气发动机使用液体燃料并与大气中的空气混合燃烧，以提供高速飞行的推力。
2
A new launch method is introduced, which the primary speed is provided by the magnetism-suspension technology, and can realize the near space flying by using of the ramjet engine.
提出了一种利用磁悬浮技术提供初始速度、利用冲压发动机实现临近空间飞行的新型发射方法。
3
The near spacecraft is boosted by the magnetism-suspension technology in order to achieve the speed that the ramjet can work. Using the ramjet, the near spacecraft is sent the realm of near space.