... 双元推进剂火箭动力装置 bipropellant rocket powerpiston 火箭动力飞行 rocket-powered flight 复式动力装置飞机 composite powerplant aircraft ...
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火箭动力装置飞行试验 rocker-power-plant flight test
在白天爬升，原型机最终达到海拔30000米的高度，打破了非火箭动力飞行的高度纪录。
Climbing during daylight hours, the prototype aircraft ultimately reached an altitude just short of 30, 000 meters, breaking records for non-rocket powered flight.
1947年，查克·耶格尔用火箭动力的X - 1第一次突破了音障，让我们吃惊的是，仅仅23年后，我们在休闲旅行中已经可以享受超音速飞行。
Chuck Yeager first broke the sound barrier in his rocket-powered X-1 in 1947, so it's staggering to think that just 23 years later, we stood poised to take our leisure travel supersonic as well.
目前为止，美宇航局还没有开发出具有足够动力的火箭，这种火箭需要能在地球大气层以外驱动宇宙飞船飞行。
NASA has not yet developed a rocket powerful enough to propel this spacecraft out of Earth's atmosphere.
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