two-body problem [数] 二体问题 ; 两体问题 ; 双体问题
two body problem 二体题目
double two-body problem 双二体问题
perturbed two body problem 受摄二体问题
solution of two-body problem 二体问题的解
This paper analyses the two body problem of kinematical equation and discusses the elastic collision between two particles in the center of mass system.
用质心坐标系分析了二体问题的运动方程，并用质心系讨论了两个粒子间的弹性碰撞问题。
In center of mass system, solved problem of two body had merits of symmetry form, brief description and high precision.
在质心系中，解决两体问题，具有形式对称，描述简洁，精确度高等优点。
The video concludes 'even though you don't break down the rubber polymers, your body has no problem moving that lump of gum through your digestive system and out the other end within a day or two.
视频最后总结说，“尽管橡胶聚合物没能被分解，但你的身体也完全可以把这一团口香糖清除出消化系统，‘这头进那头出’，只要一两天时间。”
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