After a short, ballistic flight to about 40 feet (12 metres) altitude, the rocket, which was not equipped with a recovery system, landed nose-first in the frozen ground.
经过短暂，弹道飞行约40英尺(12米)的高空，火箭，这是没有配备一个回收系统，降落鼻首先在冻结的地面。
By using the line of sight (LOS) measurements from space based infrared sensors, free flight phase trajectory estimation problem of ballistic missile is studied.
主要研究空间预警系统利用星载红外传感器的视线测量估计弹道导弹自由飞行段弹道的问题。
According to a predetermined trajectory, ballistic missile with rocket engine propulsion takes a flight to intended targets under the action of the control system.
弹道导弹是用火箭发动机推进，在控制系统作用下按预定的弹道飞行至预定攻击的目标。
This paper mainly studies how to accurately fit the air dynamics parameter by the ballistic data of projectiles' free flight.
论文主要研究从弹丸自由飞行数据中如何准确地拟合空气动力系数。
In order to realize the trajectory of timing explosive on the small caliber shrapnel at flight ballistic, I develop a technique about shoot real time setter.
为了实现对小口径榴弹飞行弹道上适时起爆的战术要求，开展了小口径榴弹起爆时间发射装定技术研究。
The analysis of the intercept window for ballistic missile midcourse defense is put forward based on the two-body theory, since the midcourse flight of a ballistic missile is nearly a two-body motion.
根据弹道导弹中段飞行近似为二体运动的特点，应用二体运动理论分析了弹道导弹中段防御的拦截窗口。
A mathematical model is established solely according to two kinds of warhead fuze modes considering that atmosphere parameter error works on the flight of warhead explosion spot of ballistic missile.
以等高程和等过载引信两种弹头引信方式建立了大气参数偏差对弹道式导弹弹头引爆点射程影响的数学模型；
In this paper an analytic solution of free flight trajectory of ballistic vehicle is presented.
本文提出了弹道式飞行器自由飞行轨道的解析解法。
During the initial flight phase, the method which regulates the ballistic trajectory to reduce the overload requirement of the flight middle phase using the direct force is presented.
在飞行初段，提出用直接力来对弹道进行调姿以减小中制导段需用过载的方案，并利用最优控制的方法设计了直接力作用方案。
The thermal stage separation being provided with improving and enhancing stability and orbit precision for flight was abroad adopted in solid-propellant ballistic missile.
级间热分离具有改善和提高继续飞行级的稳定性和入轨精度而被固体弹道式导弹广泛采用。
The thermal stage separation being provided with improving and enhancing stability and orbit precision for flight was abroad adopted in solid-propellant ballistic missile.
级间热分离具有改善和提高继续飞行级的稳定性和入轨精度而被固体弹道式导弹广泛采用。
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