She sat down and tried to spin; but the threads cut her tender fingers till the blood ran.

她坐下来，试着纺线；但是这些线割破了她柔嫩的手指，鲜血直流。

youdao

Some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.

它们中的一些可能是顺时针旋转的，在这种情况下，根据右手定则，我们认为它们是向下旋转的。

youdao

So what that means is that we're limited in any atom to having two electrons per orbital, right, because for any orbital we can either have a spin up electron, a spin down electron, or both.

这意味着在一个原子内,每个轨道上可以有两个电子，对吧，因为对任何轨道,我们可以有自旋向上或者自选向下或者两者都有。

youdao

And some of them might be spinning clockwise, in which case, according to the right-hand rule we would consider them spin-down.

而另一些电子则是在顺时针自旋，在这种情况下，根据右手定理,我们会以为它是在向下转。

麻省理工公开课 - 固态化学导论课程节选

And, in any arbitrary crucible full of molten silver, half of them are going to be spin-up and half of them are going to be spin-down.

并且，在任一个浇满了熔银的坩埚中，银原子中的电子一半是向上转,另一半是向下转。

麻省理工公开课 - 固态化学导论课程节选

So this one is spin-up plus a half, this is spin-down minus a half.

所以自旋向上是正二分之一，而自旋向下是负二分之一。

麻省理工公开课 - 固态化学导论课程节选

Among the capabilities for open compute platforms are erasure codes but also control of HDD array energy use with drive spin-down (like the earlier MAID storage architectures that featured many idle drives).

FORBES: Adventures in Archiving

Could there be a spin-out down the road?

FORBES: What Does This $14 Billion Deal Mean For The Future Of DNA Sequencing?

Tendulkar danced down the track to hit the left-arm spin of Daniel Vettori through mid-on for a boundary to surpass his previous highest Test score.

BBC: News | Cricket | Tendulkar leads by example