x y It's really the same thing. So, x, y, let's see, where is this function equal to zero?

实际上是相同的，函数值为0的点在哪里？

youdao

The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.

x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。

《牛津词典》

That maybe now is not the best time because of X, y, Z reasons?

还是因为这样那样的原因，你觉得现在不是最好的时机？

youdao

For example, F x y z if I have an equation that looks like this, f of x, y, z.

打个比方，我有个这样的方程。

麻省理工公开课 - 固态化学导论课程节选

x y z And I have another equation f of x, y, z.

若我有另一个方程。

麻省理工公开课 - 固态化学导论课程节选

That's it. Again, these other p dxy dyz - or the d x y, d y z, those are going to be those more complicated linear combinations, you don't need to worry about them.

同样，这些p轨道,或者，它们是一些,很复杂的线性组合，你们，不用管它。

麻省理工公开课 - 化学原理课程节选

More recent data is weighed more heavily. (This was a recent change.) If you had picture A, B, and C up for one year, and then took them down in favor of pictures X, Y, and Z, then within just a couple weeks your score would be determined mostly by X, Y, and Z.

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That suggests that it might be good to get a report on x, y, and z.

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