The external forces and moments of the parachute and projectile are analyzed completely. A two body motion model of the TSP system, which is composed of the parachute and projectile, is established.
恰当地引入了降落伞的附加质量和附加惯性矩，完整地分析了伞体和弹体所受的外力和外力矩，建立了由伞体和弹体组成的末敏弹系统二体运动模型。
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。
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