A scramjet is a type of jetengine that USES compressed air in place of conventional turbines to create thrust. Read "U." S. Developing Jets that Fly Five Times the Speed of Sound.
超音速燃烧冲压喷气发动机是利用压缩空气替代常用的涡轮，形成推力的一种喷气发动机。
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We have a Eurofighter Typhoon jetengine plus a falcon rocket which gives us 47,000 pounds worth of thrust.
The action of forcing gases out from the rear of the jetengine results in a re-active force in the opposite direction, and is commonly referred to as' thrust '.