motion trail

• 运动轨迹

motion trail的用法和样例：

例句

1. Different branches interact with each other, and can change the motion trajectories of the investigated points.
   不同枝条之间存在相互的影响，并能改变考察点的运动轨迹。
2. For the purpose of simulating aerodynamically determined body motion, the governing equations of rigid body dynamics are coupled in the overall solution algorithm.
   本文还研究了刚体动力学方程与流动方程的耦合求解方法，用于模拟由气动力决定的物体运动轨迹。