所以这里有n摩尔。
So that's the 1 s orbital - we have n squared or 1 degenerate orbitals.
所以这是1s轨道,我们有n平方,或者1个简并轨道。
If we have n equals 4, what is the highest value of l that we can have?
如果n等于4,l的最大值是多少？
You have n branches on the tree and you count the number of leaves and sum them up.
你计算了树上n个树枝，并数出树叶的数目并计算出总和。
And, in fact, it can't even reach n, because then we would have no potential energy at all in our electron, which is not correct.
事实上，它连n都达不到，因为如果那样的话，电子就没有势能了，这是不可能的。
So I have n operations log n times, n log n there we go, n log n. Took us a long time to get there, but it's a nice algorithm to have.
所以我log，n遍的n次操作，就得到了,虽然花了不少时间得到了这个结论。
PROFESSOR: OK. We can have n 4, l 3, and then, sure, we can have m sub l equal negative 2 if l equals 3 What's the second value of l that we can have?
教授：嗯，我们有n4，l3,然后我们有ml等于-2，如果l等于3,l可以有的第二个值是多少？
On the other hand, we've seen n that if the size of a is n, that's to say, we have n elements to choose from, then the number of possible subsets is 2 to the n.
另一方面，我们看到,如果a集合的大小是，也就是说我们有n个元素可供选择，而可能的子集的元素,个数就是2的n次方。
Restaurants in Wuhan have begun the N-l system, which means groups of customers are supposed to order one fewer dish than the number of people in the group.
武汉的餐馆开始实行 N-1 模式，这意味着顾客群体点菜的数量应该比群体的人数少一道。
So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.
这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话，这样我们就有氢与碳之间的单键和碳与氮之间三键，然后还有一对孤对电子在氮这里。
诺拉：你有什么想法？
To date, 58 U.S. nuclear submarines have been equipped with Sperry Marine VMS-based navigation systems, and 92 percent of them have been certified to use ECDIS-N as the primary navigation plot.
迄今为止，美国的58艘核潜艇都已配备了斯佩里海事VMS导航系统，其中92％已经获得认证，使用ECDIS-N作为主要的导航图。
The new H and N surface proteins mean most people do not have antibodies to the virus, allowing it to go pandemic.
新H和N表面蛋白这意味着多数人对这病毒没有抗体，使其得以流行。
Yes, 'n' how many ears must one man have.
一个人要有多少只耳朵。
Each messaging engine will operate with a One-of-N policy, but since you have multiple engines, you can now have multiple active instances.
每个消息传递引擎按照One-of-N策略操作，但是，由于有多个引擎，因此现在可以有多个活动实例。
So let's start with a case when we have some number of the equations say n equations and n unknown.
所以让我们从一个例子入手，当我们有一些方程式，假定n个方程，n个未知数。
n} relationship, a customer is required to have at least one account and one address.
n}关系，一个客户需要拥有至少一个帐户和一个地址。
A database object can have zero to many (0.. n) schemas, and a schema can have zero to many (0.. n) tables, indexes, user-defined types, routines, and so on.
每个数据库对象有0到多个(0. .n)模式，每个模式可以有0到多个(0 . . n)表、索引、用户定义类型和例程等。
For example, if you have a 'n', you can quite quickly make a 'm' and a 'h', but also a 'u' (see drawing).
比如说，你已经有了一个“n”，你不但可以用来快速生成一个“m”和“h”，还可以用它来制作一个“u”(如图)。
N recent years there have been several programmes which seek to challenge views on death.
近年来，已经有数个节目挑战对死亡的看法了。
The population mean is often written "x-bar." If you have a sample with n observations, it's the summation i = 1 to n of xi/n--that's the average.
人口均值经常写成“x-条形柱”，如果你有一个样本有n个观测者，是从i=1到n和的xi/n，这是平均值。
Like particles, you have to divide by N factorial..
像粒子这样，你需要除以n的阶乘。
But I shall have to go to 'n if he's alive.
但是这次我非得去找他不可了，就是不知道他还活着没有。
We receive shipments o n Tuesday and Saturday, which means that we have different items in the store at least twice a week.
我们通常在周二和周六安排发货，这就意味着一个店面的在一个星期内至少更新两次。
'I want to go and fetch your father; but what's more 'n that, I want to tell' ee what have happened.
我正要出去找你的父亲；不过还有比这更重要的，我要告诉你刚才发生的事。
Since rock is basically music for teenagers, rock 'n' rollers have seized on and exploited the natural rebelliousness of teens with much success.
摇滚大体来讲是一种给青少年的音乐。摇滚乐在抓住并且利用青少年叛逆的天性这一点上做的非常成功。
So, let's try another example here, and let's try a case now where instead of dealing with a neutral molecule we have an ion, so we have c n minus.
那么，让我们来试一下另外一个例子，这次不是一个中性原子,而是一个离子，氰离子。
So, let's try another example here, and let's try a case now where instead of dealing with a neutral molecule we have an ion, so we have c n minus.
那么，让我们来试一下另外一个例子，这次不是一个中性原子,而是一个离子，氰离子。
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