The view is to the north of the station's ground track.

拍摄视角是空间站地面轨迹正北方。

youdao

A regional navigation constellation scheme composing eight IGSO satellites of ground track is presented in this paper.

提出了一个由八颗同地迹有一定倾角的地球同步圆形轨道(IGSO)卫星组成的区域导航星座方案。

youdao

To generate and realize 4D guidance in the terminal area, first there should be ground track , then the altitude profile and appropriate speed profile along the track.

末端区域4D导引应首先生成轨迹，然后生成沿该轨迹飞行的高度剖面、合理的速度剖面，最后生成自动引导飞机在规定时间着陆的4D导引指令。

youdao

Remember, you've got to keep track of the sign of acceleration, so if you're picking up speed towards the ground, a is negative, so it will be g plus a, but a is a negative number.

记住,一定要注意加速度的符号,所以当你加速下降的时候,a 是负的,还是 g 加上 a,但是 a 是负数

耶鲁公开课 - 基础物理课程节选

The crash happened just before 5 p.m. on an above-ground track on the Red Line in the District of Columbia near the border with Takoma Park, Maryland.

CNN: Six killed in Washington-area Metro train collision

This follows Tottenham's announcement last week that it wanted to demolish most of the Olympic stadium and build a new ground without a running track.

BBC: Olympic stadium

But I can report that thanks to the extraordinary service of our troops and civilians on the ground, we are on track to achieve our goals.

WHITEHOUSE: President Obama on Afghanistan-Pakistan Review