the motion of a projectile抛物体的动作 The motion of the train soon lulled me to sleep.火车的行驶很快使我进入梦乡.
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A projectile motion was conducted to investigate the conceptual knowledge and motor knowledge of adolescents in the judgment condition and action condition.
利用抛体运动考查在判断和运动两种试验任务下，青少年概念知识和运动知识的分离及特点。
The mass center motion equations of a damp-increasing range correction projectile were established by the concept of damp-increasing coefficients.
用增阻系数的概念，建立了增阻式射程弹道修正弹的质心运动方程组。
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。
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