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It is a double column, You can see, it starts with hydrogen and goes to mercury in ascending order of atomic mass.
双纵栏，你们看到，从氢开始,然后到水银，按原子质量的升序排列。
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So we have like, I'm course 2. And my classes are, you know, two double o one (2001)
比如说，我的专业是课程2，我的课是001（2001），
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If you double everything in the system, the temperature is not going to change, it's not going to double.
如果你把系统中所有的东西增加一倍，温度是不会变的，它不会跟着增加一倍。
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So it's very important to be keeping in mind that any time you see a double bond, you have a pi bond there, so you're not going to see any rotation around the bond axis.
所以你们要记住,任何时候你们看到一个双键，这里面有π键，你们不会看到关于键轴的任何转动。
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You start with O double minus, so that is oxygen plus two electrons.
你从氧二负离子，也就是氯元素带2个负电子。
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I want to start by showing you this cartoon that you already know about with the structure of a double helix.
我想要给你们看这张卡通模型,你们都知道,这是DNA双螺旋结构
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You double click an icon, the program gets loaded into memory, well, conceptually where does your program end up?
双击一个图标，程序就被加载到内存中，那么，程序在哪里结束？
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There's one more piece that we'd like to get out of that, and that is-- you may have been wondering, what's with the funky stuttering here of three double-quotes in a row. All right? And that is a specification.
但是你没有屏蔽这个函数的使用细节,在这里我们还想再讲一讲,那就是--你可能正在想,这里连续3个奇怪双引号,是干什么用的。
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A Texas Double Whopper will make you stronger.
一个德州巨无霸汉堡会让你更强壮
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All right. So you probably read in the book that the bassoon is a double reed instrument, and so just to show you what that looks like-- You've probably seen it but if you haven't, two pieces of wood vibrate together when I blow through them.
好的,你们可能在书上看到过,巴松管是个双簧乐器,我将为你们演示双簧怎样演奏,你们可能见过,如果没有请看我演示,我吹奏时,两个木片会一起震动
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That's an organization of people who sell real estate and they have ad campaigns trying to convince you that home prices are going to double.
AR是房屋销售者成立的组织,他们会发动广告攻势并试图让你相信,房价就要翻倍了
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they also have the double program where you can do Master's in Education.
这里也有双学位课程，可以读教育硕士。
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The split voice, the development of what you could say is that racial double consciousness that W. E. B. Du Bois talks about, that double consciousness of the racial reality, is manifested in that split in the narrative.
在双重叙述中,双重语气表现了出来,这就是W。，E。，B，Du，Bois所说的，种族双重意识，的发展。
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I mean that's obvious. The mass, if you double the amount of stuff the mass will double.
这是显然的，还有质量，如果你把系统中物质的,数量增加一倍，质量也会增加一倍。
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So really, you can not ever rotate a double bond, it makes your molecule very rigid.
实际上，你不能转动一个双键，它使得你的分子很坚固。
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And this is the same periodic table that you're going to get in your exams, so it's good to practice doing your problem-sets with that periodic table so you're not relying on having the double check right there of seeing what the electron configuration is.
这也是你们考试时会用到的相同的表,这样你们就不会，所以使用周期表来做问题集,是很好的练习,这样你们就,不会依赖于再次确认,电子构型是什么了。
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If you double the system, they double in there numerical number.
如果你把系统扩大一倍，它们的值也会扩大一倍。
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skittles So when you compile a program called A dot out, or skittles or wherever, and you double-click that program, or our in our command line environment, run it with dot slash skittles, that program is loaded Microsoft Word into memory just like Microsoft Word or whatever would be on your own computer.
当你编译一个程序a，out，或者,或其他的，你双击那个程序，或着在我们的命令环境中，采用，/skittles来运行它，那个程序被加载到,内存中，就像,或者你电脑上的其他程序。
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Now, in your book, there's an example of plasmid where I've given you the exact sequence of nucleotides that makes up the whole double stranded DNA molecule.
现在在你们书里,有个质粒样本,我将组成这个双链DNA分子的,核苷酸序列写在这里了
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Object versus value equality. Particularly when you use double equals, are you asking whether you've got the same object or the same value?
对象与值相等,特别是当你用==时,你得问问自己对象与值是否匹配？
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But the string, the sentence or the words that we're displaying on the screen, previously you clicked on a little white text field and typed it in, well now you're gonna do the same thing at the keyboard but you're gonna have to sandwich it in between double quotation marks.
这些你想输出到屏幕上的字符串啊，语句啊,单词啊，或者你事先,在白色输入框中敲进去的内容，现在你们需要用键盘做同样的事情,但是你们要写在,双引号之间。
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When you double-click a program, it's loaded into RAM.
当你双击一个程序，它被加载到内存中。
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But once you have a double bond here, we have our pi bond, as well as our sigma bond.
但一旦你有了双键，我们有π键，也有sigma键。
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Sometimes you need to escape a double quote.
有时候是双引号。
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This is incredibly important because if you picture having a double bond in a very large molecule, you could have all sorts of other atoms off this way and all sorts of other atoms off this way, and you can picture the shape would be very different if you have one confirmation versus another confirmation.
这是十分重要的,因为如果你想象在一个大分子里有一个双键，你可以在这里有各种各样的其它原子,在这里也有各种各样的其它原子，你可以想象一个构型,和另外一个构型之间的形状差别是非常大的。
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And just intuitively, when might you need to put a backslash in front of a double quote given the examples we've seen thus far?
凭直觉来看，迄今为止，你们什么时候,会用到\“呢？,举个例子？
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I just showed you that you can have a single wave, a double, a triple and so on.
我想说的是你能得到单个波，双波，三条波等等。
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So in order to rotate a double bond, you have to actually break the pi bond, so essentially what you're doing is breaking the double bond.
为了能够旋转双键，你必须打破一个π键，本质上我们要做的就是打破双键。
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DNA is a double helix, you know this, the double helix was--the structure of DNA was discovered about the time that I was born you've always lived with it.
NA是双螺旋结构,众所周知,DNA的这种双螺旋结构,是在我出生的那个年代才被发现的,它就是你生命的一部分
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