The structure of grinding wheels can realize high point grinding, and the good grinding equiprobability lies on a proper spinning speed and the random variation of the spinning axis.

砂轮本身的结构特点可保证高点磨削的实现，而磨削等概率性则依赖于：生坯球合适的自旋速度及自旋轴方向的随机变化。

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Nuclear bombs are humankind's most powerful weapon, but their destructive impact would unlikely alter the spinning of the Earth on its axis.

核弹是人类最强大的武器，但是它们的破坏性影响还不大可能改变地球沿着其轴线的自转。

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Consider a ball that is spinning about an axis perpendicular to the flow of air across it (see left).

观察一个旋转轴与空气流动方向垂直的足球(见上图)。

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So you can see, if it's spinning on its own axis in this direction we'd call it spin up, where as this way it would be what we call spin down.

你们可以看到，如果它绕自己的轴朝这个方向转,我们就说它是自旋朝上，这个方向我们叫它自旋朝下。

麻省理工公开课 - 化学原理课程节选

Regardless, the world can go back to spinning on its axis now that we know the U.S. won't be beating out our Japanese counterparts in advanced telecommunications deployment anytime soon.

ENGADGET: Cingular to delay HSDPA network rollout

Further attempts involved switching on the motors while spinning Galileo on its axis, and also when it reached the point of its maximum acceleration around Jupiter.

ECONOMIST: The long arm of the celestial repairman