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Who was also one of the word's first programmers. So she was trying to write this program, and it didn't work.
也是世界上最早的几个程序员之一,她正尝试着完成一个,复杂的求反正切的程序。
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The manager of the Lakers, Mitch Kupchak, the whole team, it's a whole business venture.
比如湖人经理米歇尔·库普切克，以及整个队伍，这是一个企业。
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Or you could ask the question, I have this restriction enzyme, at what regions on this plasmid will it cut?
你也可以这样问,我的这种限制性内切酶,会从质粒的哪个区域切开呢
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Or should we think the fundamental thing is the car extended through time ? and sliced up to make car stages?
还是说,根本的部分是贯穿时间的物体,切分成不同的阶段？
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If you have a set of blocks, mechanical, physical blocks,and I tell you to build something and I say, oh, by the way, you have to cut the blocks in smaller pieces, you are going to get angry, aren't you?
如果你要一个区块，力学的，物理区块，我告诉你要去建造东西,我说，顺便说一下，你必须将一整区块切成小块，你会生气，不会吗？
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I'm asking what's the tangential speed as it moves along the circle?
它在做圆周运动时,切向速度是多少
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He had him cut in two.
后者已被切成两半。
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Now what I'd like to do is something that you'll probably cut out because of copyright issues but it's a kind of fun warm-up anyway, so we're going to go ahead and do this and then we'll actually start.
首先我想做个小游戏,不过这个片段可能由于版权问题而被切掉,但是这个热场游戏很有趣,那么,我们马上开始,游戏之后再正式上课
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You've got to spend the time to make sure that everything is well defined before you start trying to work out these problem More about the path. There are a couple ways you could go through that pass If I look at this smooth path here.
你要花时间确认,在你开始尝试解题前,切已经被很好地定义,关于路径还有些问题,你可以用两种不同的方式经过这条路径,看这条平滑的路径。
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Cutting involves enzymes called restriction endonucleases or restriction enzymes, which I've already mentioned and they have names.
切割用到的酶叫限制性核酸内切酶,或限制性内切酶,我已经提到过了,而且它们都有名字
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For precisely the reasons that are pointed to by the rest of the argument.
这个论证的其余部分,会为我们指出切确的原因
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When it cuts it leaves sticky ends or un-base paired single stranded regions on each end of the part its cut and that's just a property of many restriction enzymes; not all, some cut blunt,just right down the middle.
它切割后会留下两个粘性末端,或者未配对的单链部分,这是许多限制性内切酶的特性,但不是全部,有些限制性内切酶是从中间钝切的
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Moral purity of persons can be achieved only by punishment for heinous sins: for example, the punishment of chirate, or cutting off, ; is a divine punishment of being extirpated from the House of Israel; death, alright, that's one way to be rid of moral impurity.
只有通过惩罚这些穷凶极恶的罪过,才能获得道德的纯洁，举个例子，切去身上的某部分，是一种连根拔去罪恶的惩罚方法;,死亡，当然也是摆脱道德不洁的一种方法。
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Here the unique thing was that there's a restriction site inside that is present in normal DNA and not present in sickle DNA.
刚才例子中,特性就是在正常的基因中,有酶切位点,而在患者的基因中却没有
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In this case, this particular restriction enzyme cuts symmetrically like this, but not at the same point.
在我们这种情况下,这个限制性内切酶总是这样对称地切割,但两条链切割的位点不一样
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That's an example of symmetric sequence and it happens that most restriction enzymes also recognize those spaces.
这是一个对称序列的例子,大多数限制性内切酶都能识别这些序列
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This restriction enzyme was found in a natural source, it was found in a micro-organism called E.coli.
这个限制性内切酶源于自然界,是从名为大肠杆菌的微生物中发现的
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Now we know so much about these, they've turned out to be so useful in biotechnology.
现在我们对限制性内切酶了解这么深入,它们在生物技术方面又这么有用
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They do that in a very special way in that they - restriction enzymes are able to identify a particular sequence of bases in a gene.
限制性内切酶的工作机制很特别,它能识别基因中的一段特定的碱基序列
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There are whole catalogs that you go to and buy restriction enzymes.
我们已经可以从整本的目录上,挑选购买限制性内切酶
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What's really prior is the car itself and talking about car stages is a certain convenience a kind of way of chopping up the fundamental thing of the car.
重要的是,汽车本身,谈论阶段只是提供便利,是一个把基本部分,切分开的方法。
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That cutting is done by special proteins called restriction enzymes.
切割是由一种特别的蛋白质完成的,称为限制性内切酶
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What restriction will do that?
哪种限制性内切酶可以做到
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So I would help myself to this language of space-time worm object that extends not only over space but also over time, and distinguish the entire worm from the various slices or stages that either make up the worm or we could slice the worm into.
然后我借助时间虫这个词,这是描写物体,贯穿时间和空间的词语，并区分出整条虫,和不同的部分,这些部分是组成虫，或者虫可以切分成的。
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That messenger RNA that's being used has already gone through the RNA splicing mechanism and so the introns have already been removed.
这个mRNA,已经经过了RNA剪接机制的剪接,切去了内含子
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Now another property of restriction enzymes is that they always cut the DNA in the same way.
限制性内切酶的另一个特性是,总是以同样的方式切割DNA
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It was found in strain R, a particular strain of E.coli, and it was the first one found, There's a nomenclature that's evolved for this.
酶被发现于R菌株,大肠杆菌中一种特别的菌株,又是被发现的第一种内切酶,有一种专门为此制定的命名法
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I cut it in half, I'll use some protractors and dividers and compasses, you can split the meter into any fraction you like.
把它切成两半,我用量角器,两脚规,还有圆规,你想把一米分成任意份数
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