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At first it meant hitting a spot at the center of a target with an arrow.
VOA: special.2009.09.20
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Some people like to use an arrow, and the arrow points in the direction of the more electronegative end.
也可以用箭头，箭头指向,带负电的一极。
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Here I paused in my fiction to shield my eyes and stanch the arrow-straight tracks clawed down my cheek.
飞箭在我脸上笔直地犁出了一条伤口，我停止了幻想,遮住眼睛，赶忙去止血。
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Professor Wobbrock says it uses a large circular cursor instead of the traditional arrow pointer.
VOA: special.2011.04.18
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p2 p1 is greater than p2. Then I want to reverse direction of time. I want the arrow of time to go so that the gas goes from p2 to p1.
一直推，一直推，p1大于,接下来我想让时间倒流,让气体从p2到p1。p2比p1小。
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He's got a full-feathered headdress. Or he's sitting cross-legged with his moccasins and a bow and arrow and a tepee in the background type of thing."
VOA: special.2010.11.29
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The point is the arrow A, somebody has chosen to write in terms of i prime and j prime as Ax prime and Ay prime.
解决问题的关键在于矢量 A,可以用这样的形式来描述,i' ? Ax' + j' ? Ay'
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He is reaching his bow and arrow up to the sky.
VOA: special.2009.11.13
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And I am going to let this arrow somehow indicate the value of the incident energy.
我将用这个箭头,来揭示,入射能量的值。
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Earlier this year, Tehran's arch-enemy Israel test fired its own Arrow 2 missile in a simulation of stopping the Shahab-3.
VOA: standard.2009.09.28
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Instead if we want this pointer to represent the address of something in as much as it points at that address let's just draw an arrow.
如果我们想要让这个指针表示,数据的地址，它指向的地址,我用一个箭头表示。
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That is our mission,". "And the president described it in no uncertain terms in his inaugural when he said, 'Our nation is at war against a far-reaching network of violence and hatred.' And to win this war against al-Qaida, the administration continues to be unrelenting, using every tool in its toolbox and every arrow in its quiver,"
VOA: standard.2009.08.06
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So if we want to put that in chemical terms, we want to make sure we put these in brackets here, and remember, this is the resonance arrow, it's not a reaction arrow, it's a resonance arrow, so make sure you mark it up correctly like that.
那么如果我们把它类比到化学中来，我们要确保它们都放在括号里，而且要记住，这是一个表示共振态的箭头，而不是表示化学反应的，它是一个表示共振态的箭头，因此请务必像这样正确地标记它。
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That's what this arrow at the right shows, the direction of the flow of information.
这就是右边这个箭头的含义,即信息流动的方向
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And I can find the orientation of the arrow You have the option of either working with the two components of A or with the arrow.
我也可以求得矢量的方向,你可以选择使用,A 的两个分量或者矢量图来计算
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You can either think of it as an arrow and imagine the arrow, or you can reduce it to a pair of numbers, x and y.
你既可以用有向线段来表示,也可以用一组数字来表示,x 和 y
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You can kind of see where the syntax is going, looks like a loop, but you can kind of put blocks inside of you, and the little arrow suggests that once you get to the bottom just like our socks example, you're gonna do the following again.
从某种程度上你可以看到它的语法构成,像个循环，你也可以把，一些程序块放到循环中，如同短袜的例子，这个小箭头暗示你一旦到达底部,你将会重复接下来的事情。
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Scratch This Boolean expression allows you to say to scratch if you are touching the mouse pointer, the little arrow, do something. How do we do something?
布尔表达式允许你告诉,当你触碰到鼠标指针，也就是小箭头，程序就相应地做一些事情？
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That limit will be some arrow we can call the velocity at the time and it will always be tangent to the curve.
那个极限也就是一个矢量,我们称之为瞬时速度,并且它总是和轨迹相切的
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If you give me a pair of numbers, Ax and Ay, that's as good as giving me this arrow, because I can find the length of the arrow by Pythagoras' theorem.
如果给我一组数字,Ax 和 Ay,就相当于给了我这个箭头示意图,因为我可以利用毕达哥拉斯定理定理求出模长
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Number two, pointer dereferencing starts at the pointer and follows its arrow over to access its pointee.
第二，指针非关联化从指针开始,通过它的箭头,来使用它的指针数据。
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So in a moment you're going to go ahead and hit the spacebar and then as things fall from the screen when they line up with the left arrow, hit the left arrow with a different arrow, hit that arrow and see how good a score you can get.
一会儿你走到前面，敲一下空格键,当屏幕上面的东西从左边往下掉的时候,你就敲一下键盘上的左键,是哪个方向，敲对应的方向键就可以了,我们来看看你能得多少分。
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When I draw something without an arrow, I'm talking about the magnitude.
如果我写下的字母没有箭头,那就说明我在讨论模长
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So I'm hitting the up arrow right now.
所以现在我在敲右箭头键。
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An arrow to the same thing, right?
一个箭头指向同一东西，对不？
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Now I'm hitting the down arrow.
先在我敲下箭头键。
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So, for the most part any time we talk about or draw pointers an arrow suffices, which really 71 in there is a number like 71, which is the literal byte that the F is actually in in RAM, but frankly who cares?
所以，每次我们讨论,或者用箭头表示指针,在指针里面有一个数字，如,那是F在RAM中的字节，但是谁在乎它呢？
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The typical vector is called V or A or B something with an arrow on it.
表示矢量时一般在,字母 V,A 或者 B,上面加个箭头
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