经射击试验证明文中所述对增程弹火箭助推发动机喷管设计具有一定的指导意义。
The design of the nozzle of the rocket assisted engine with the base bleed compound extended range shrapnel is introduced in this paper.
经射击试验证明文中所述对增程弹火箭助推发动机喷管设计具有一定的指导意义。
It's indicated that the design of the nozzle of the rocket assisted engine is to direction advantage in engineering by the experiment.
在激增的科学院所、技术中心、企业孵化器、创业基金的助推下，美国大学更是经济的发动机，而不是象牙塔。
America's universities are economic engines rather than ivory towers, with proliferating science parks, technology offices, business incubators and venture funds.
新型运载火箭将由飞船助推火箭、燃料箱、主发动机以及月球火箭发动机组成。
They would be built from shuttle booster rockets, fuel tanks and main engines, as well as moon rocket engines.
在这一点上，但是，助推器自旋这么快推推进剂燃料线远离，过早关闭发动机。
At that point, however, the booster was spinning so fast it pushed propellantaway from the fuel lines, shutting the engine down prematurely.
并对发动机喷流对助推器分离的影响开展研究。
Moreover, the influence of engine-jet on booster separation was studied.
介绍了主发动机加助推器和简易控制方法实现固体火箭等高飞行的设计方案。
The tentative design of constant altitude flight solid rocket composed of the sustainer, the booster and its simple control method is presented.
介绍了主发动机加助推器和简易控制方法实现固体火箭等高飞行的设计方案。
The tentative design of constant altitude flight solid rocket composed of the sustainer the booster and its simple control method is presented.
该方法在飞行器发射初段采用磁悬浮技术助推，产生冲压发动机要求的初始速度，在冲压发动机最佳工作高度水平加速后将飞行器送至临近空间。
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.
认为：用激光拦截助推段弹道导弹时，其液体贮箱壳体和固体燃料发动机壳体是最易损的，生存能力很低；
It is realized: when ballistic missile in boost phase is intercepted with CW Laser, its liquid storage and solid rocket engine shells are the brittlest, the survivability is very low;
采用速燃发动机降低助推段高度、缩短助推时间是反助推段拦截的有效手段。
The improvement of motor's combustion velocity to shorten the action time and reduce the height of boost phase is an effective method for anti boost phase interception.
“云霄塔”系无人驾驶，它没有外部助推火箭，其发动机靠氢氧燃料提供推力。
The unpiloted Skylon has no external rockets, and its engines USES hydrogen and oxygen for propulsion.
世界上第一台可提供7吨推力的闭合回路液氧碳氢推进剂发动机被安装到L助推器上。
The world's first closed-loop engine, with thrust of about 7 tons and using liquid oxygen and carbon-hydrogen propellant, was installed in booster L.
世界上第一台可提供7吨推力的闭合回路液氧碳氢推进剂发动机被安装到L助推器上。
The world's first closed-loop engine, with thrust of about 7 tons and using liquid oxygen and carbon-hydrogen propellant, was installed in booster L.
应用推荐