有一个sigma轨道。
It turns out that it's a sigma bond.
实际上它是sigma键。
S And I'm going to name this sigma 1 s.
我把它命名为sigma1s。
We want to discuss sigma bonds and pi bonds.
我们要讨论sigma键和π键。
A triple bond, again is going to have one sigma bond on the internuclear axis.
一个三键，同样的也有沿着核间轴sigma键。
If we think about that, that's a sigma bond, right, they're coming together along the nuclear axis.
如果我们考虑它的话，它是sigma键，对吧，它们沿着核轴方向靠近。
Any time two orbitals come straight on together in that internuclear axis, you're going to have a sigma bond.
任何时候两个轨道，在核间轴上直接到一起，你就能得到sigma键。
Also, it is cylindrically symmetric around the bonding axis, so this is how we know that it's a sigma orbital.
此外，它关于键轴是圆柱对称的，这就是为什么我们知道它是sigma轨道。
And a sigma bond forms any time you have two orbitals coming together and interacting on that internuclear axis.
当你把两个轨道合在一起，并在核间轴上有相互作用时，就形成了sigma键。
First of all, this is the two s orbitals in hydrogen, 1s plus 1s smearing to give us this sigma molecular orbital.
首先，这是氢气中的两个s轨道，1s与1s轨道重叠，产生sigma分子轨道。
If we have the molecule ethane, then what we're going to have first is our sigma bond that we described between the two carbons.
如果我们有乙烷分子，那我们首先有,碳碳之间的sigma键。
So, as they're very quietly handing out your class notes, let's think about what this bond is here, this boxed bond, is it a pi bond or a sigma bond?
在他们发讲义的同时，我们来看看这个键，方框里的这个键，它是sigma键还是π键？
But in sigma orbitals, you have no nodal planes along the bond axis, so if we had a nodal plane here, we'd see an area where the wave function was equal to zero.
但在sigma轨道里，沿着轴向是没有节点平面的，如果我们有个节点，我们就会看到某个地方波函数等于0。
我哥哥宣誓加入Σ NU联谊会。
Other investors included Charles River Ventures and Sigma Partners.
其他投资商还包括查尔斯河风险投资公司和西格玛合作伙伴。
He knew that his apprehension was in part due to his lack of knowledge of Six Sigma.
他知道他的忧虑部分原因是对六西格玛原则的不了解。
All spectators will get in free to Sigma Olomouc's Andruv Stadium, which seats 12,119.
所有观众届时都可免费进入有12119个座位的该队主场安德·鲁夫体育场。
Lean Six Sigma is a process-improvement methodology that DOD has endorsed departmentwide.
精益六西格玛是一种流程改进方法，已在美国国防部内部获得批准。
Learn how to improve your small business by implementing Six Sigma problem-solving methods.
学习通过执行六西格玛问题求解方法改善小公司。
It should be one of the first tools employed when starting any Six Sigma or process improvement project.
它应该是启动任意一个六西格玛项目或者过程改进项目的最早的工具之一。
Small business owners often discount Six Sigma because they think it isn't applicable to their business.
小公司的拥有者时常不相信六西格玛，原因在于他们认为这并不适合他们的企业。
It is the basis for the Pareto diagram, one of the key tools used in total quality control and Six Sigma.
它是帕雷托图表的基础，是一个用在全面质量控制和六标准差中的关键工具。
The Sigma 30 artillery navigation and pointing system is designed for high-precision firing at short notice.
Sigma30火炮导航指向系统专为高精度武器在短时间内发射而设计。
BPA Suite Addresses rich analysis and modeling requirements (e.g. Six Sigma, Lean, documentation-only modeling, etc).
应对复杂分析与建模需求的BPA套件(例如，六西格玛、精益分析、单纯的文档建模[documentation -onlymodeling]等)。
If the mean is the required quality standard of a particular process or product, then One Sigma quality is not very good.
对某个生产过程或产品而言，如其均值是所要求的质量标准的话，那么一西格玛则表明质量不如人意。
The Six Sigma Black Belt should be able to compute the mean and standard deviation from a grouped frequency distribution.
六西格玛黑带应该能够计算出一个分组发生频次分布数据的均值和标准偏差。
Having recently received a promotion, Alan is going to America to learn 6 Sigma, which is a system for improving quality.
Alan最近刚刚升职，他要去美国学习用来提高产品质量的系统——6 Sigma。
The prominent reddish nebula at the lower right surrounding the star Sigma Scorpii is a reflection nebula produced by dust scattering starlight.
在右下角围绕着天蝎座Sigma的突出的红色星云是由星尘将恒星的光线散射开来而产生的反射星云。
Yet there I was, at 7pm on a soggy Sydney winter's evening driving my dodgy little Sigma from my home in Cronulla to my mother's home in Engadine.
晚上七点，在阴冷的悉尼的冬天，我开着自己这部小巧灵活的西格马轿车，从cronulla的家回engadine的妈妈家。
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