motion orbit equation that 运动轨道方程
Based on the orbit equation of particle motion in central force field, the stable property and close property of orbit were discussed.
在中心势场中粒子运动轨道方程的基础上，进一步讨论粒子轨道的闭合性、稳定性。
The paper researches into the orbit equation of the projectile motion and the projectile crosswise deviation when the earth rotates.
本文通过研究地球自转时抛体运动的轨道方程和抛体的横向偏离等，揭示了地球自转对抛体运动的影响。
The motion of charged particle acted upon by Lorentz force and other external force are analyzed, calculating formulae of orbit equation and curvature radius are derived.
分析了带电粒子受到洛伦兹力和其他恒定外力作用下的运动情况，导出了轨道方程和曲率半径的计算公式。
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