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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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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A method of internal ballistic calculation for spinning solid rocket motor has been presented in this paper.

提出了一种旋转固体火箭发动机的内弹道计算方法。

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U.S.officials say no part of the three-stage rocket reached orbit and the launching was a thinly-disguised test of a long-range ballistic missile that was banned under a 2006 U.N.resolution.

VOA: standard.2009.04.15

He told Parliament the covert ballistic missile tests and rocket launches contravened a UN resolution.

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"Iran has also been carrying out covert ballistic missile tests on rocket launchers, including testing of missiles capable of delivering a nuclear payload in contravention of UN resolution 1929, " he said.

BBC: William Hague concerned over Iranian missile tests

On Monday Iran successfully launched a domestically manufactured satellite on a ballistic missile called the Safir-2 space rocket.

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