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"Democrats and Republicans must still work together to make health care more affordable, invest in renewable energy and help all people in America to get an education.
VOA: standard.2009.04.28
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this happens spontaneously, you actually get energy out of the reaction as this happens.
这是自发的，当反应发生的时候,你会自发地放出能量。
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Because I,I wanted to get into alternative energy.
因为我想去做替代能源，
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We need to move on." McCoy believes the best way to get more solar,wind and tidal power on the grid is to offer renewable energy generators a government guarantee.
VOA: standard.2010.03.23
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Okay, so the body has a way of metabolizing and making use of the food such that you can get energy or nutrients from it.
对的,身体可以代谢并利用食品,从中获取能量和营养
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"In addition to cleaning up the mess, repairing the damage and cracking down on big oil companies, we also have to get serious about ending our dependence on oil and creating new sources of clean energy."
VOA: standard.2010.07.31
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All right, so I'm burning some energy, I'm burning some fuel to do this somehow, to get that work to happen.
而这个路径需要先加热再冷却，这样，我需要能量来源，比如燃料，来完成做功。
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So, what we get for the disassociation energy for a hydrogen atom is 424 kilojoules per mole.
因此，我们就得到了氢原子,离解能的大小为，424，千焦每摩尔。
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You get things in the energy of the room with so many students so you wouldn't just get from your computer.
和大家一起，在课堂的气氛中学习,而不是仅仅对着电脑。
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Glucose has to get into cells, that's the main source of energy source that cells use, metabolism of glucose.
但葡萄糖又必须进入细胞,因为它是细胞能量的主要来源,即通过葡萄糖代谢产生能量
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And so what I get is the energy of the system at the equilibrium separation is given by minus z plus.
这就是通过减去z+得到得平衡分离时,我得到的能量体系。
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And you can get to things like the macro-stressed insure, and energy flow in a much more robust way than you can even in an advanced course of magnetism.
所以你便可以更形象地理解,像微粒，能量流动,等概念,你甚至可以,比在高级课程更讲的程度深。
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It's a particle of mass m and momentum p has this energy so you solve for the energy, you get two answers.
一个质量为m,动量为p的粒子,有这么大的能量,你解出能量,得到两个解
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PROFESSOR: No. So, compared to the atoms, it should be somewhat the same energy, we shouldn't get any extra stabilization from forming the molecule.
不会，所以和原子相比，它的能量相同，形成分子并不会带来额外的稳定性。
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If you get some of these in the upper atmosphere, a photon, an ultraviolet photon, has the energy capable of breaking this bond.
如果你把它放到大气层上，一个光子，一个紫外光光子，有能量可以破坏它的化学键。
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Just to get you oriented, this is energy decreasing from zero to progressively negative numbers.
只是为了让你们多了解些这方面的东西，在这里能量,从0开始逐渐递减到负数。
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So what that means is that's how much energy we would have to put into a hydrogen molecule in order to get it to split apart into its two atoms.
它的意义,就是我们需要向一个氢分子中注入这么大的能量,才能将它分解成两个独立的原子。
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So, that's the difference in thinking about different types of ionization energy, so it can get a little bit confusing with terminology if you're just looking at something quickly, so make sure you look really carefully about what we're discussing here.
所以，这就是我们,在思考不同类型的电离能时所看到的不同，因此如果你看得不够仔细的话,你可能会被其中的术语弄迷糊了，所以一定要看仔细,我们讨论的是什么。
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And, if you ever get confused, the way to remember these is that you know energy is the integral of a force moving through a distance.
如果你感到很困惑的话，可以这么来记,能量是在沿力的方向进行路径积分。
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it's an easy calculation -- we're just taking the negative of the binding energy, again that makes sense, because it's this difference in energy here. So what we get is that the binding energy, when it's negative, the ionization energy is 5 . 4 5 times 10 to the negative 19 joules.
这个计算很简单-我们,只需要取结合能的负值,同样这很容易理解，因为这就是这的能量差,所以我们得到的就是结合能,当它取负值，电离能就是5。45乘以。
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The ones who would conserve energy, that is they were sedentary when possible, other then when they had to go get food would again not waste their calories but would save them and contribute to the gene pool.
那些保存能量的人,那些能躺不坐,能坐不站的人,除非必须再次寻找食物,否则是绝对不会浪费能量的人,也是对基因库有贡献的
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we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.
当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。
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You can see that as you fill up your periodic table, it's very clear. But also we'll tell you a pneumonic device to keep that in mind, so you always remember and get the orbital energy straight.
在你们填周期表的时候，非常清楚但是我们也要告诉你们,一个策略去记住它，所以你们总是记得,并得到连续的轨道能量。
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They're not interacting at all so that's why the energy is the same as that for two individual atoms, that's what we're dealing with. As we get closer together, we start get lower and lower in energy.
它们之间没有任何相互作用，因此,体系的能量就等于两个分开的原子的能量，这就是我们要处理的，而随着我们的距离越来越近，我们的能量开始变得越来越低。
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Let's quantify the energy value. If you go through and solve for energy, you will get this equation.
我们来确定一下能量值，如果你试图寻找,解决能量问题，你能得到一个方程式。
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It means that we better get away from these deterministic models where we have a little electron here with its potential energy and its kinetic energy.
它的意思是我们最好远离,这些确定性模型,那里有一个小电子,它具有势能和动能。
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Where am I going to get those energy levels from?
我到哪里去获得这些能级呢？
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The sum of path number 2 and path number 3 get me to the same place, so the energy change by going through this time path, this intermediate point here back all the way to final state should be the same the red path.
而经过路径2和3可以3,到达同样的末态，因此经过路径,2和3带来的能量的变化，与路径1带来的,能量变化相同。
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So that's the important take-away message from this slide. If we think about these different types of lights, microwave light, if it's absorbed by a molecule, is a sufficient amount of frequency and energy to get those molecules to rotate. That, of course, generates heat, so that's how your microwaves work.
重要的信息，如果我们看看,这些不同种类的光，微波,如果被分子吸收，它的频率和能量可以,使分子转动,这当然的，会产生热量,这就是你们微波炉的工作原理。
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So you don't want to put in a negative energy, that's not going to help you out, you need to put in positive energy to get an electron out of the system. So that's why you'll find binding energies are always negative, and ionization energies are always going to be positive, or you could look at the equation and see it from there as well.
因为这对电离没有帮助,你需要一个正的能量,使得电子脱离这个系统,这就是为什么你会发现,结合能总是负的而电离能总是正的,或者你们看这个方程也可以发现这一点。
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