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European Union chief diplomat Javier Solana, who has represented the P5+1 in dealings with Iran, has contacted the office of Iranian nuclear negotiator Saeed Jalili to arrange a meeting.
VOA: standard.2009.09.11
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Three plus five. I can take something to a power, double star, just take three to the fifth power.
+5，我也可以,求一个数的次方，例如求3的5次方。
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and I think she's going to end up with 13 GCSEs, probably all As or A+s.
我想她会考十三门课程，可能都是A或者A+，
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The P5+1 last year presented Iran with a revised offer of incentives for it to halt a uranium enrichment effort U.S.and European officials believe is weapons-related and return to negotiations on its nuclear program.
VOA: standard.2009.06.24
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Well, that then says after another 12 steps, 12+12+t we're down to a problem with size t of b over 4.
更进一步，也就是。
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First of all, it's clear from the Pythagoras' theorem that a is the square root of ^2 + ^2.
首先,根据毕达哥拉斯定理,勾股定理在西方被称为"毕达哥拉斯定理"
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Well, we would have to H+ have one of these hydrogen atoms go to an H plus, * plus an electron, right? **H --> H+ + e-** So, now we have a hydrogen ion here.
我们先要让,一个氢原子变成氢离子，加上一个电子，对么*,我们现在有一个氢离子了。
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Cv+R=Cp Cv is equal, oh Cv plus R is equal to Cp it's a relationship that we had up here that we wanted to prove.
我们就得到了,我们一开始,想要证明的。
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So if we have total +2 and complete shielding -1 where that can actually negate a full positive charge, because remember our nucleus is plus 2, +1 one of the electrons is minus 1, so if it totally blocks it, all we would have left from the nucleus is an effective charge of plus 1.
抵消一个完全的正电荷,因为记住我们的原子核是,其中一个电子是,所以如果它完全挡住了它，我们从原子核中留下的，全部有效电荷就是，所以，在我们的第一个例子中,我们的第一种极端情况。
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I mean if you chose Alpha, you're swinging from A to B-; and from Beta, swinging from B+ to C.
要是你选α,你的分数会在A到B-,选β,分数范围会在B+到C
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And this a time in the company where you just have to aspire with each hire to get an A rate plus person and it's easier said than done.
也就是说，在这个时代,招聘的标准就应该定为,招聘A或者A+的人,不过说起来容易做起来难。
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There are no A+'s; it sounds a little bit like college, but not quite.
没有所谓的A+,这听起来有点像大学,不过不大一样
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But here's a new and improved, I think, version of increment; ++ returns nothing, takes nothing, but it does perform plus plus, but I did something stupid.
但这里是一个新的，改进了的increment版本;,没返回值，没输入值，但它执行的是，但是我做了件愚蠢的事情。
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If you want to call something as A + B, it means that I did A and then I did B.
如果你想某个量称为 A + B,它表示我先沿着 A 走,然后是 B
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One thing I can guarantee from past experience in this class, is that the median grade will be a B+.
不过从教学经验看,中间成绩应该是B+
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u=q+w We have a relationship between them.
它们之间有关系Δ
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Therefore, the vector A that you gave me, I have managed to write as i times Ax plus j times Ay.
这样,你给我的矢量 A,我已把它写成 i ? Ax + j ? Ay的形式
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You know that if you took a derivative of this, you will find v of t is v0+at.
如果你对这个式子求一次导,你将会得到v=v0+at
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You can verify, in this simple example, that A + B is the same as B + A.
在这个例子中还可以验证,A + B = B + A
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Because the B+ or A- people, B- you know it, they'll hire B's and B minuses.
原本想要B+或者A-的人，实际能力评分只有B或者。
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So, suppose I tell you to add two vectors, A and B equal to C, and I say, "What's the result of adding A and B?"
假设我告诉你们将两个矢量相加,A + B = C,我问,"A 加 B 结果是什么"
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If we both put Beta, then we both get a B+; in particular, my pair gets a B+.
如果我们都选β 我们都会得到B+,此情况下,我对手得B+
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B + A would be--First draw B and from there you draw A.
+ A 就是先画矢量 B,然后再画矢量 A
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I personally don't like swings that much and it's the B-/B+ range, so I'd much rather prefer that to a swing from A to C, and that's my reason.
我不喜欢成绩波动很大的,比如B-/B+这个范围,所以我还是喜欢像A到C这样小点的,这就是我的原因
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And we will call that A + B.
我们就称它为 A + B
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r+ And let's say that sodium has a radius, r plus, r- and chlorine has a radius, r minus, when r is very large in comparison to the radii of the ions, I don't need to draw them this way.
让我们假设钠有半径，是，氯也有半径，是，当r比离子半径大很多的时候，我不需要这样来描述。
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If you are describing a particle with location R, the vector we use typically to locate a particle, R then R is just i times x + j times y, because you all know that's x and that's y.
如果你要描述一个位移为 R 的质点,这个矢量一般用表示质点 R 的位移,R 可表示为 i ? x + j ? y,显然你们都知道这段是 x,那段是 y
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Then, to find the meaning of b, we take one derivative of this, dx/dt, that's velocity as a function of time, and if you took the derivative of this guy, you will find as at+b. That's the velocity of the object.
接下来,为了弄清b的含义,我们取它的一阶导数,dx/dt,得到速度作为时间的函数,如果你对它求导的话,你会得到at+b,这就是物体的速度
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It turns out, and we're going to get the idea of shielding, so it's not going to actually +18 feel that full plus 18, but it'll feel a whole lot more than it will just feel in terms of a hydrogen atom where we only have a nuclear charge of one.
结果是我们会有,屏蔽的想法,所以它不会是完整的，但是它会比原子核电荷量,吸引力要大很多,只有1的氢原子的。
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As reported contemporaneously in 2000,the number was -3.1% but if you look at the number reported for 2005, because bad records had disappeared and good records had been added, all of a sudden the average experience for that year went up to +1.2%.
000年期的公告中这个数字为负3.1%,但是如果你去查2005年公告的数字,坏记录已经调整而消失,有利的投资记录被加入,转瞬之间,年平均收益升至1.2%
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