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254 So, basically all we did was take 12 54, 22 subtract 12 32, and we got 22 electron volts.
基本上我们所要做的全部也就是用，减去，1232，这样就得到了。
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So this delta energy here is very simply the energy of the initial state minus the energy of the final state.
很简单的，这个能量差等于,初始能量减去末能量。
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That's the important message, delta H of formation of the products, minus delta H of formation of the reactants.
去反应物的生成焓，这,是个重要的信息，生成物的生成焓,减去反应物的生成焓。
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So we would say the real interest rate equals the nominal rate-- approximately equals--the nominal rate minus the inflation rate.
我们可以推出实际利率约等于,名义利率减去通货膨胀率
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That is going to equal the energy of the electrons in H2 minus the energies of the electrons in H.
这等于H2分子的能量2,减去H原子中电子的能量。
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And the yardstick that we're at least doing our best to apply is one of measuring up the pleasure and subtracting the pain.
我们尽最大努力去应用的标准,是汇总快乐，再减去痛苦。
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So you get the profits of the firm minus the disutility of having missed all that sleep.
你的收益是公司的利润,减去放弃了休息的负效用
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He meant by utility the balance of pleasure over pain, happiness over suffering.
他认为功利等于快乐减去痛苦，幸福减去苦难。
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That's true, but especially because of my parenthesization 32 over here, because I'm saying, "Do f minus 32, but then multiply it by the division on the left."
是那样的，但是特别地，因为我这里加上了括号,因为我指明，“f减去，然后它乘以左边的那个除法的结果“
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If I reduce that it would be 3 plus t of b minus 3, so in general 3*k+t this is 3 k plus t of b minus k. OK.
把b减去一个,在外面加个3就可以了,因此也就是。
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And in terms of radial nodes, we have 2 minus 1 minus 0, so what we have is one radial node.
对于径向节点，我们有２减去１减去０,所以有一个径向节点。
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So here we have 3 minus l equals 0, because it's an s orbital, minus 1, so we have two radial nodes here.
这里我们有３减去ｌ等于０,因为这是ｓ轨道，减去１,我们有两个径向节点。
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Our ionization energy is going to be equal to the incident energy coming in, minus the kinetic energy of the electron.
我们的电离能将等于,入射能量，减去电子的动能。
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One over two squared minus one over n squared 3 4 5 where n takes values three, four, five, six.
除以，2，的平方再减去1除以n的平方,将n赋值为。
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If instead we had a positive ion, a cation, what we would have to do is subtract 1.
如果我们有一个带正电的离子，一个正离子，那我们就需要再减去一个。
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We're subtracting them from one 1 and they're less than one, so this is bigger than this.
用1减去他们,结果小于，所以它大于它。
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W2 If I go backwards, to work p1 becomes the negative from what I had p2 calculated before, so this becomes minus what I calculated before for w2.
应该是,总功等于,减去,等于。
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Then the deal is that when you sell the house they subtract -you've got to pay this.
那么当你售出房子后,他们会从中减去,这个余额,这就是你要付给他们的
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They would have won five bucks minus five cents for a total of four ninety-five.
他将得到5美元减去5美分,就是4美元95美分
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I will get to this later, where I have the return minus the interest rate on this axis and the market return minus the interest rate on this axis.
迟一些我会讲到,就是用这个轴表示收益减去利率,这个轴表示市场收益率减去利率
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I have some kind of moral conscience and after I've subtracted off my guilt feelings I end up at -1, so think of this as guilt: some notion of morality.
而晚上睡不着觉,所以减去我的负罪感的负效用后,我只得-1,把它看成负罪感吧
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You can't just add up all the pleasures and subtract the pains, or add up all the accomplishments and subtract the failures, or add up all the knowledge and subtract the ignorance and deception.
你不能只是把快乐加起来然后减去痛苦，或者仅是把成功相加再减去失败，或者把学问相加再减去蒙昧和欺骗。
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/2 So the bond order is going to be equal to 1/2, and then it will be 2 minus 2.
它的键序等于，然后乘以2减去2。
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For the carbon, we start with 4 valence electrons, we have 0 lone pair electrons minus 4, and we end up with a formal charge of 0.
对于碳，我们从四个价电子开始，我们有零个孤对电子，再减去四，最终我们有零个形式电荷。
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The way that we can figure this out is using something called bond order, and bond order is equal to 1/2 times the number of bonding electrons, minus the number of anti-bonding electrons.
我们可以用叫做,键序的概念来弄明白它，键序等于1/2乘以成键电子,数目减去反键电子数目。
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And we talked about the equation you can use for radial nodes last time, and that's just n minus 1 minus l.
我们讲过这个用于,计算径向节点的方程，也就是ｎ减去ｌ减去１
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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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They subtract this from the purchase price of the house and then you've got the cash to go and buy another house.
他们从售房价格里减去这个贷款余额,然后你就可以得到现金去买另一个房子
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That means that we need 12 minus 8, 8 or 4 bonding electrons in our structure.
这意味着在这个结构里，我们需要12减去,等于4个成键电子。
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So to figure out bonding electrons, -- what we take is that number 18, which is our total number of electrons we need to fill valence shells, and we subtract it from our number of valence electrons, which is 10.
那么为了找出成键电子，我们将十八，也就是填满所有价壳层,所需要电子的总个数，减去我们所有的价电子的个数，也就是十。
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