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1·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。

2·And when you solved the relativistic form of the Schrodinger equation, what you end up with is that you can have two possible values for the magnetic spin quantum number.

当你们解相对论形式的，薛定谔方程，你们最后会得到两个，可能的自旋磁量子数的值。

3·And this spin magnetic quantum number we abbreviate as m sub s, so that's to differentiate from m sub l.

这个自旋磁量子数我们把它简写成m下标s，以和m小标l有所区分。