In this paper, the expression of the geometric distortion after the along-track motion compensation is derived. Then a method is presented for geometric distortion correction.

对沿航向运动补偿后的几何形变量进行了推导，提出一种校正沿航向运动补偿后几何形变的方法。

youdao

The airborne processing system can simultaneously and continuously detect and track the presence and motion of thousands of small or large targets over an area covering tens of square miles.

机载处理系统能够同时和连续地探测和跟踪数十平方英里面积内出现的数千个小型或大型目标。

youdao

So I mentioned to you that the motion of the center of mass is very uniform in the absence of external forces, and that I can demonstrate for you again with the air track.

我向你们提到过,重心的运动是稳定的,若不受外力，我可以再次演示,在空气轨上。

youdao

So the sign of the number is adequate to keep track of my motion.

所以数字的符号对于记录运动足够了

耶鲁公开课 - 基础物理课程节选

Scientists who favor this theory point to the fact that monkeys have special neurons that track the motion of hands.

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When energy is needed, the cars are released, and as they run back down the track their motion drives a generator.

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The controller also features a light bar, which means a new PlayStation camera can more easily track the device for motion control.

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