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Hell had indeed frozen over -- Ms.Haigh said it was minus-seven Celsius.
VOA: special.2010.12.20
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- Then also, nitrogen, 3 minus -- these are all going to be isoelectronic with neon.
然后还有，氮，负三价-,这些都是与氖原子等电子的。
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So now I've got this gamma placed in there, -1 gamma minus 1, so I've ben feeling a little bit better.
这样我把这里的指数，换成γ,这样看起来舒服一些。
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All right, so the bonding order, you're correct, should be 2, if we subtract the number of bonding minus anti-bonding electrons and take that in 1/2.
好，你们是对的，键序为，如果我们用成键数,减去反键数除以2。
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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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Anything where you're actually keeping track of something like a score that's having a variable that you increment -- plus, plus, or decrement, minus, minus, using the appropriate puzzle piece could certainly be compelling.
你需要保存像分数这样的事物时,你就需要一个变量,它可以自加，++，或者自减,要使用正确的拼图。
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Square root of 16, and my plot basically shows it crosses at 4 and-- well, I think that's minus 4.
我的图清楚的显示这个函数,在4和-4两个点和x轴交合。
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And that makes sense, too, because the positive three pulling on minus one has a tighter binding energy than positive one pulling on minus one.
而这也是有意义的，因为+3和-1的相互吸引,产生了比+1和-1的吸引,更强的能量。
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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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Then you guys know, you just told me, acceleration is -9.8, We call it "minus" because it's accelerating down and up was taken to be the positive direction.
然后你们都知道,你告诉我,加速度是-9.8,我们取负号是因为加速度方向朝下,而正方向为竖直向上
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So if you get these two guys together you get CvdT=-pdV Cv dT is minus p dV.
把它们联系,起来。
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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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Well, the energy at infinity is zero -K and the energy in the ground state is minus K.
无限远处的能量值为,而基态能量值为。
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*10^-18 1.6 times 10 to the minus 18, excuse me, 6*10^-19 we have 1.6 times 10 to the minus 19, 2.18 times 10 to the minus 18, etc.
。,1。,2。18*10^-18，等等。
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OK. If last minus first is greater than or equal to 2-- sorry, less than 2, then either look at this thing or look at that thing.
大于等于儿，抱歉，是小于二,看看这里或者那里,这就是我说的要特别小心的地方。
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*10^-19 That is 1.6 times 10 to the minus 19 and I write joules.
。,然后我又写了焦耳。
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So you buy it at a discount and the return you get is of course a hundred minus--the return you get is the discount.
所以以折价买入,并且回报等于,100减去,回报等于折扣差价
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So for the bond order we want to take 1/2 of the total number of bonding electrons, so that's going to be 4 minus anti-bonding is 4, so we end up getting a bond order that's equal to 0.
键序等于1/2乘以,总的成键电子数，也就是4，减去反键电子数，也就是4。,所以最后得到键序为0。
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Wirr Minus w irreversible, this is the work which is done to the environment by the system, -Wrev minus w irreversible is always smaller than minus w reversible.
一点提示，不可逆过程中系统,对外界做的功，总是小于,之前我们。
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i-1 But with index i minus 1.
但是同时返回的是索引号。
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the winner is the person whose number is closest to 2/3 times the average The winner will win $5 minus the difference in pennies between her choice and that two-thirds of the average."
所选数字最接近2/3倍平均数人是赢家,赢家的奖金是5美元减去,所选数和平均数三分之二之差的百分数
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So the profit is 2 S1 plus S2 plus B S1 S2 minus S1 squared.
利润是2-S1平方
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It would be nine times less. That is to say minus nine is less than minus one.
它比9倍更少，那就是说,9比-1小。
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And we plug in our values and end up with mv squared mv^2/r-Ze^2/ over r minus Ze squared over And I am going to call this equation two.
我们最后的结果,就是,我把这称为方程式二。
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So, we can say that -- if we have neon here and we want to think about what's isoelectronic, -- f minus would be isoelectronic. We also have oxygen -- what would the charge on oxygen be? Um-hmm, right. 2 minus.
那么，我们可以说--如果我们这里有氖原子,而我们想知道与它等电子的是什么，负一价的氟离子就是与它等电子的，我们还有氧-,氧应该是几价的？没错，负二价。
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One minus one-half plus one-third, it is all there.
-1/2+1/3，这就是它。
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6*10^-19C It is 1.6 times 10 to minus 19 coulombs.
则电子电量为1。
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E to the power of minus one-quarter times the difference in electronegativity squared.
指数是四分之一,把他乘以四分之一，在移到e上去做指数。
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So I'm done when b minus k equals 1, or k equals b minus 1.
因此b-k=1或k-b=1的时候，我就可以停下来了。
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Yeah. Actually, I think I want b minus k equal to 1. Right?
对，实际上，当b-k=1的时候就该停下来了对不对？
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