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1·Ease of use: Learning Eclipse takes some spin-up, especially if you would like to investigate all of the tools capabilities.

易用性：eclipse的学习过程有些曲折，尤其是当您想研究所有工具的功能时更是如此。

2·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。

3·With the magnetic field turned on, the iron layers both magnetize, say, in the spin-up direction, so all of the spin-down electrons move through the entire sample without scattering.

加上磁场后，两个铁层都被磁化，假如是上方向，那么所有下自旋的电子移动通过整个样本都没有散射。

4·Dynamical characteristics of the gyroscope during spin-up and erection procedure, and the influence of the stray magnetic field on gyro's drift and speed attenuation are investigated.

讨论了陀螺在驱动、定向过程中的动力学特性，以及杂散磁场对陀螺漂移和转速衰减的影响。

5·In this scenario, all the electrons eventually scatter during their long trip along the sandwich: the spin-up electrons from one iron layer and the spin-down electrons from the other.

在这种情况下，所有的电子在其沿着三明治的长途旅行中最终都散射。上自旋的电子从一个铁层，下自旋的电子从另一个。

6·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。

7·So by parallel we mean - they're either both spin up remember that's our spin quantum number, that fourth quantum number.

所以我们意味着，它们都是自旋向上，记住我们的自旋量子数，是第四个量子数。

8·And now I will so when I spin it up, that's right so let me now change the direction.

我会这样当我将它旋转起来，现在改变方向。

9·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。

10·Some materials, however, are easier to spin in this way than others, for if the molecules do not stick together, the liquid stream will break up.

然而，一些材料比其它材料更容易用这种方式纺成线，因为如果分子不粘在一起，液体流就会断裂。