Therefore, for simple branching programs, the length of time, the complexity the code, is what we would call constant.

因此，对于简单的分支程序，运行的时间长度，算法的复杂度，也就是我们说的常数。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, let me take a sidebar for about five minutes to talk about course administration, the administrivia things that we're going to do in the course, just so you know what the rules are.

现在，让我用大约五分钟的边角料时间,来说说本门课的基本信息,也就是我们需要在课上做的事儿，好让你们了解一下规则。

麻省理工公开课 - 计算机科学及编程导论课程节选

So what we'll end up with is boron plus, 1 s 2 2 s 2 1 s 2, 2 s 2, E and what we say is the delta energy or the change in energy as the same thing as saying the energy of the products minus the energy of our reactant here, that's how much energy we have to put into the system to eject an electron.

所以结果应该是正一价的硼，电子排布为，我们说，Δ,也就是，E，的变化量,等于生成物的能量,减去反应物的能量，这就是我们从这个系统中,打出一个电子所需要的能量。

麻省理工公开课 - 化学原理课程节选