当它被抛出，它肯定会像一颗流星撞击的速度目标。
When it is thrown out, it would sure strike the target, like a meteor's speed.
牵引变电站设施的分布与容量应满足干线的速度目标、交通量、编组以及运行间隔要求。
Distribution and capacity of the traction substation facility shall satisfy the requirement of the velocity aim traffic volume marshalling and running interval of main line.
目标是测量 AU；随后，当我们知道了所有围绕太阳的其他行星的轨道速度，对太阳系的规模就有充分的认识了。
The goal was to measure the AU; then, knowing the orbital speeds of all the other planets around the Sun, the scale of the Solar System would fall into place.
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