The velocity, temperature and trajectory of the particles are treated with Lagrangian approach.

用拉格朗日方法对粒子的速度、温度、轨迹进行处理。

youdao

And then the velocity of diesel spray and ethanol spray are measured by processing the reconstructed trajectory image with the method of particle measurement proposed in the paper.

利用本文所提的粒子测量方法对所得的轨迹再现像进行处理，实现对柴油喷雾场和乙醇喷雾场的速度测量。

youdao

It is shown that the climbing control plan is applicable to the aircraft with slower climbing according to optimum performance trajectory and automatically fly with optimum cruising velocity.

经分析计算与试飞结果表明，对于爬升较缓慢的飞机，本控制方案可实现沿优化性能轨迹上升，并自动转入有利速度巡航。

youdao

The study of the past doesn't yield unalterable laws that allow one to predict the future with the same certainty that a physicist can chart the trajectory and velocity of a falling object.

NPR: 'Folly of Empire' Offers Critique of U.S. Imperialism