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。

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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。

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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。

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These are widely recognized as far less conducive to a first-strike than are short-time-of-flight ballistic missiles.

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They're reconfigured to shoot down ballistic missiles in flight.

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Not to be outdone, Iran has, according to testimony before Senator Jon Kyl's Terrorism Subcommittee in March, performed mid-air detonations over the Caspian Sea using ship-launched ballistic missiles - a flight profile consistent with an EMP attack.

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