In an orbital is remember that this area right here at r equals zerio, that is not a node.

例如对于１ｓ轨道,记住这里ｒ等于０处不是一个节点。

麻省理工公开课 - 化学原理课程节选

4 So this is 16 times 4 equals 64 and though this is not proof by any means, it's not a formal proof because here is one example that happens to prove my point.

所以是16*4，即,尽管如此，这并不是严格的证明,因为是这个例子碰巧证明了我的观点。

哈佛公开课 - 计算机科学课程节选

Angular nodes, we're not going to have any of those, we'll have zero, l equals 0, so we have zero angular nodes.

角向节点，当然,是没有的，０个，ｌ等于０，所以是０个角向节点。

麻省理工公开课 - 化学原理课程节选

Maybe not. It has no protons, so therefore, it has no electrons Because proton number equals electron number, which means if it has no protons 0 its atomic number is zero.

也可能不会，这个元素没有质子，因此，也没有电子,因为质子数等于电子数，意味着它没有质子,它的原子序数为。

麻省理工公开课 - 固态化学导论课程节选

We are able to talk about the fact that two plus one equals three, but it's not as though we ever come across numbers-- number three itself--anywhere in the empirical world.

我们可与去探讨,二加一等于三的这个事实,但是我们不可能有一天真的碰到数字,在现实世界中碰到个叫"数字三"的东西

耶鲁公开课 - 死亡课程节选

Okay, so while not equal to, so bang equals, exclamation point equals is computer science syntax for saying not equal to, 0 while not equal to 2 which it is not, it is equal to 0.

好的，尽管不等于不是相等的反写,但惊叹号在计算机科学的语法是不等于的意思，尽管不等于2，但它是等于。

哈佛公开课 - 计算机科学课程节选

So that means it's not possible, if we've made these stipulations in the first place, to have a case where l equals 1.

这说明我们之前的假设,ｌ等于１不可能的。

麻省理工公开课 - 化学原理课程节选

And one of the things neophytes trip over early on is that we'll soon see there's not only an equal sign operator, there's equals equals.

这样我们还要引入了一个新的操作符,我们将看到这里不仅有一个等号的操作，还有双等号。

哈佛公开课 - 计算机科学课程节选

If I do x equals 42, I'm not going to put the 42 here, where am I going to put it?

如果，x，=，42，我不会把42放在这里，我把它放在哪里？

哈佛公开课 - 计算机科学课程节选

No, we can't. Because if l equals 1, we can not have m sub l equal negative 2, right, because the magnetic quantum number only goes from negative l to positive l here.

不行，因为如果ｌ等于１,ｍｌ的值不可能等于－２，对吧，因为磁量子数的值,这时只能从－１到１

麻省理工公开课 - 化学原理课程节选

We all do believe something makes it true that two plus one equals three, but it's not the fact that empirical objects-- We don't do empirical experiments to see whether two plus one equals three.

我们都相信有些东西,使2加1等于3是正确的,但这不是说现实的东西,我们不会在现实中做实验,去看看二加一是不是等于三

耶鲁公开课 - 死亡课程节选