theoretical trajectory

The thesis studies the movement of short cylindrical particles with high-speed camera, depicting the trajectories of some particles which agree with the particle theoretical trajectory. The thesis takes some research about the force of the short cylindrical particles.

本文采用高速摄影机研究了短圆柱颗粒的运动规律，描绘了部分颗粒的运动轨迹。

Based on the theoretical model, the length of trajectory, number of grinding marks and grinding stable period are deduced. The relationship between grinding surface quality and the density of grinding marks is theoretically analyzed.

在运动学模型的基础上，推导了磨粒轨迹长度、磨纹数量以及磨削稳定周期的公式，并分析了磨粒轨迹对表面质量的影响关系。

The influence of tracking error and the bias of the theoretical trajectory departure is discussed, also.

分析了测距误差和理论弹道偏差对定位的影响；

Orbital correction is necessary to ensure the probe follows its theoretical trajectory as closely as possible, said the CNSA.

国家航天局表示，轨道修正是为了确保探测器始终飞行在适当的轨道上。

The Trajectory of Organizational Flexible Forms and Its Theoretical Explanation

组织柔性结构的演进及其演进的理论诠释

Mathematical model of missiles of aerodynamics and attitude control engine compound control is presented, which provides reference for the calculation of theoretical trajectory and controlled trajectory;

建立了空气动力和姿控发动机推力复合控制弹体的数学模型，为理论弹道和控制弹道的计算提供了参考；