This is why IT firms are always trying to move "up the stack", reducing their dependence on hardware and pushing up into software and services, where margins are higher.

这就是IT公司总是想要凌驾于硬件之上，减少对硬件的依赖，转向利润更高的软件和服务业的原因。

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If we make level 5 our goal, then we need to sell people on the benefits of the higher levels and make it as easy as possible for them to move up through the intervening levels.

如果我们设定的目标是级别五，我们就需要说服人们去接受更高级别的好处，让他们尽可能简单地从现有级别向上升级。

youdao

But if demand for gold starts to build, then it can move higher no matter what the dollar does.

但是，如果对黄金的需求开始增大，那么无论美元走势如何，金价会上扬。

youdao

So you can see that we're starting to have a very complicated equation, and it turns out that it's mathematically impossible to even solve the exact Schrodinger equation as we move up to higher numbers of electrons.

所有你们可以看到我们得到了,一个非常复杂的方程，结果是它在数学上是,不可能解出确定的,薛定谔方程,当我们考虑更高的电子数目的时候。

麻省理工公开课 - 化学原理课程节选

What we're proposing here is that you take a nice low energy s electron and move it into a higher energy p orbital.

我们这里说的是,你把一个低能s电子,移到高能p轨道里去。

麻省理工公开课 - 化学原理课程节选

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