This combining of data and functions on that data is a very essence of object-oriented programming That's really what defines it.
数据与函数的结合,是面向对象编程的核心,这也就是它的定义。
All right. So, let's look at this in another way, sometimes it's hard to picture these waves combining.
好的,让我们从另外一个方面来看,有时候很难想象这些波函数的组合。
Another interesting thing that we learned is by combining other technologies with this technology.
我们还了解到另一个有趣的现象,结合另外两项技术与这项技术。
By combining elements as it were of the few and the many polity is characterized by the dominance of the middle class the middle group.
透过结合一些元素,就像前人所为,结合少数人与多数人,政体的特征便转为是,由中间阶级,中间团体所统治。
What a delight to be able to spend a few minutes with you and such a very special class, where you are combining the science of positive psychology with its practice.
和你们共度几分钟,真是乐事,在这样特别的课堂上,在这里你们将积极心理学的科学,和应用合二为一。
When I posit the existence of atoms with certain structures and certain sort of ways of interacting and combining and building up, when I posit atoms, suddenly I can explain all sorts of things about the physical world.
当我假设原子以某种特定结构存在,以一定的方式相互作用,互相结合,集聚,通过假定原子存在,我立即就能够解释,物理世界中各种各样的现象了
So, we see is when we use the octet rule to look at fluorine molecule, we're combining two fluorine atoms, and what we end up with is an f f molecule where they're sharing two electrons, so making that covalent bond.
那么,我们看到把八隅体规则用到氟分子上,就是把两个氟原子组合起来,最终得到的氟分子中两个原子,共用一对电子,这就构成了共价键。
px We'll call it either pi 2 p x, 2py if we're combining the x orbitals, or pi 2 p y.
我们叫它π,如果是x轨道组合的话,或者π
So again, looking at the shapes, now we're just combining two, we've got these two equal hybrid orbitals plus these 2 p orbitals here.
同样,我们看它的形状,现在我们仅仅结合两个轨道,我们得到这两个杂化轨道,和两个p轨道。
We got them from combining again, 1 s orbital and the 3 p orbitals. If we hybridize these, what we end up seeing are these four hybrid orbitals.
我们把1s轨道,和3p轨道结合而得到它们,如果我们杂化它们,我们最后会看到4个杂化轨道。
So it's along the bond axis and it's between a carbon s p 2 hybrid, and then the hydrogen is just a 1 s orbital that we're combining here.
所以它是沿着键轴方向的,而且这里是一个碳sp2杂化轨道,和一个氢的1s轨道的结合,在这里我们可以合并他们。
And if we think about the six hydrogens, now each of those are going to bind by combining one of the carbon hybrid orbitals to a 1 s orbital of hydrogen.
如果我们考虑有六个氢原子,每个都会合起来,碳杂化轨道成键,每个氢的1s轨道。
So in s p 2 hybridization, instead of combining all four, we're just combining two of the p orbitals with the s orbital.
这样就能得到sp2杂化,在sp2杂化中,不是四个轨道结合。
So let's look at the first case 2px where we have either the 2 p x or 2 p y type of orbitals that we're combining.
让我们看看第一个情形,我们要组合,或者2py轨道。
That should make sense because they come from combining s orbitals and p orbitals.
这会产生一定的效果,因为他们由s轨道和p轨道合成。
And specifically, when we give them a name it's very clear exactly which orbitals they come from combining, - we're calling these s p 3 orbitals -- that's because they come from combining 1 s orbital and 3 p orbitals.
特别的,我们命名它们,使得很容易看到它们是什么轨道结合而成的,我们叫这些轨道sp3轨道-,这是因为它们是由1s轨道,和3p轨道组合成的。
And what we see here is now when we're combining the p, we have our 2 p x and our 2 p y orbitals that are lower in energy, and then our pi anti-bonding orbitals that are higher in energy.
这里我们看到,当我们结合p轨道时,在低能处我们有,2px和2py轨道,π反键轨道在更高的能级处。
So again, we can name these molecular orbitals and these we're going to call also to point out there is now a bond axis along this nodal plane, which is something we didn't see before when we were combining the s orbitals.
同样的,我们可以,命名这些分子轨道,这些轨道叫做-同样要指出的是,现在沿着键轴是一个节点面,这是我们讨论s轨道的时候,从没有看到过的。
So essentially, each of these orbitals come from linear combinations of all of the original orbitals, and it's hard to picture exactly how that happens, but one that you can at least start to get an idea is if you think about combining the 2 s and the 2 p z here, which is not quite accurate because of course, we're combining all of them.
本质上,这些轨道每个都来,自原来所有轨道的线性组合,我们很难想象这是怎么发生的,但你们可以至少有个概念,如果你们考虑2s和2pz轨道的结合,这当然是不太准确的,因为我们要把所有的都组合起来。
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