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David Crystal is a British linguist who has written more than one hundred books, including the book "Language and the Internet."
VOA: special.2010.01.28
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And what that corresponds to, if you recall, is the idea that in a perfect crystal at zero degrees Kelvin then you have no disorder at all.
如果你们能回忆起来的的话，这就意味着,绝对零度下的完美晶体,一点无序状态也没有。
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It is 1.7475. Conclusion: if I start to react sodium with chlorine, the result is a crystal, a three-dimensional array.
这是1。7475，结论就是：,如果我使钠和氯反应，结果将会是一个晶体，一个三维排列。
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Janai Nelson and Crystal Granderson-Reid thought of the idea for the dolls during a play date for their children.
VOA: special.2011.04.22
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We looked at pressure change before, actually, in discussing the third law, the fact that the entropy goes to zero as the absolute temperature goes to zero for a pure,perfect crystal.
在讨论热力学第三定律的时候，我们讨论过压强变化,即对于纯净的完美晶体,随着温度下降到绝对零度熵也变成零。
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In the end, he was able to produce a very similar crystal bracelet for less than twenty dollars.
VOA: special.2009.05.18
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And at first this was done by Davidson and Germer, and they were American scientists who tried diffracting electrons from a nickel crystal.
这个实验首先是由，美国科学家Davidson和Germer完成的,他们尝试从镍晶体中衍射电子。
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The shape of a snow crystal may change from one form to another as the crystal passes through levels of air with different temperatures.
VOA: special.2010.01.05
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And, we knew that if we know the crystal structure we can get the Madelung constant, not a problem.
我们都知道只要有了晶体结构,就能知道马德隆常数。
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Retired Special English writer Paul Thompson once saw a crystal bracelet in a store.
VOA: special.2009.05.18
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And I want that to react to give me sodium chloride as a solid and crystal.
它们反应会得到氯化钠,氯化钠固体晶体。
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Hours later,Aylmer returned carrying a crystal glass with a colorless liquid.
VOA: special.2009.09.26
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And you will form a crystal of sodium chloride as a result of this need to form crystal expressed through the Coulomb's Law.
你能得到氯化钠晶体,因此，形成晶体所需要的条件,在库伦定律中通篇都有表达。
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Most sand is made of quartz, a hard silicon crystal.
VOA: special.2010.01.04
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I know table salt is white, but that is because you have power and you have multiple surfaces scattering, but a large crystal of sodium chloride is clear and colorless.
我知道食用盐是白色的，但这是因为你让它成了粉末,因为有了多个散射面，但是一个大的氯化钠晶体,是无色透明的。
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David Crystal is a British linguist and author of over 100 books, including 2001's Language and the Internet.
VOA: standard.2010.01.16
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Crystal is an ordered solid, as opposed to a disordered solid.
晶体是一种有序的固体，和无序固体相反。
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"If someone had told me in law school,even, that I have a crystal ball and I see in your future that you're an art lawyer, I probably would've said, 'What in the world is an art lawyer?'" Because there weren't any.
VOA: standard.2010.07.26
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You can consider this line a one-dimensional crystal because it is ordered.
你可以考虑这一列为一维的晶体,因为它是有序的。
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It's a geometric factor that's unique for each crystal structure.
特有的几何参数,对不同晶型而言。
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And so this means that they will form a crystal.
这就意味着它们形成了晶体。
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So I would call it a one-dimensional crystal.
所以我们称之为一维晶体。
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This is a three-dimensional crystal.
这是一个三维的晶体。
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It's going to be a one-dimensional crystal.
它将是一维的晶体。
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that's one way to think about it, and there's also another way, and this is the way that your book presents it. If you, in fact, have two of the same atom right next to each other, let's say you have a crystal, or let's say you're talking about a metal, what you can do is just look at the distance between the two nuclei, and split that in 1/2, and take the atomic radius that way.
这只是一种定义的思路，另外还有其它方法，也就是你们课本上的方法，如果你，事实上，有两个相同的原子彼此靠在一起，比如说你有一个晶体，或者说你讨论的是一个金属，你所要做的就是,看看这两个原子核之间的距离，然后将距离除以二，就得到了这个原子的半径。
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A sodium chloride crystal is transparent to visible light.
氯化钠晶体对可见光透明。
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There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.
没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。
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If de Broglie is correct, let's irradiate the nickel crystal with a beam of electrons where the wavelength of the beam of electrons is identical to the wavelength of the x-rays that were used and see what we get.
如果德·布罗意是正确的，那么镍晶体放出,电子光束,电子束的波长,和原来讲过的X光的波长是相等的,再看看得到了什么。
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They took a crystal, this is a single crystal of nickel that has regular planes of atoms, and those planes are spaced on the order of an angstrom or less apart, and they irradiated this with x-rays.
他们取了个晶体,一个具有规则原子平面的，镍晶体,这些面间距差不多也是一埃或者更少，它们放射出X射线。
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