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Militants are launching attacks against government and security targets from bases in tribal areas on the border with Afghanistan.
VOA: special.2009.10.17
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There are 64 combinations of three bases and I only need to describe 20, so there's combinations to spare.
三个一组的碱基产生六十四种组合,而我只需对应二十种氨基酸,所以一种氨基酸会对应不同密码子
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that kind of bases itself on like nerdiness or geekiness or science,
以极客或书呆子或者科学为基础，
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I might say I touched all the bases if I did what is necessary to complete a job or activity.
VOA: special.2009.04.12
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As physicalist we can still say that the bases of personality is that there're bodies, there're functioning in certain ways.
作为物理主义学者我们认为,人格的基础还是肉体的存在，肉体的存在有很多个性。
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His latest book, "Circling the Bases: Essays on the Challenges and Prospects of the Sports Industry" will be published in September.
VOA: special.2010.07.26
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They do that because the bases can interact with one another in particular ways, and this you know about.
它们结构稳定,是因为碱基之间,以特定方式相互作用,这是你需要知道的
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The president gave the pro-slavery governor of Kansas control of troops at two army bases in the territory.
VOA: special.2009.05.07
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But because they have such a good reputation, on the bases of ratings and other kinds of securities, people just took them as they were.
但是这些评级公司有着良好声誉，基于他们传统的评级,和对其他保险的评级，人们自然相信他们。
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The president said American forces have already closed or turned over hundreds of bases to the Iraqis.
VOA: special.2010.08.07
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DNA also has this sort of combinatorial system where you have a finite number of, I guess, bases or amino acids that could combine to a possible infinity of strings of DNA strings.
脱氧核糖核酸也拥有这种组合系统,你的生物基础或氨基酸数量是有限的,但却能组合出,几乎无限的脱氧核糖核酸螺旋结构
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"This is the Army" also was performed for the American troops at military bases around the world.
VOA: special.2009.12.20
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I think especially when you get to the UN with much of the UN's core bases, European..., the anti-death penalty, even beyond "women's issues".
尤其是牵涉到联合国的时候,联合国的那些核心基地，欧洲的，废除死刑，消除“女性问题“等等。
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Officials say the solid-fuel rocket could reach Israel, southeastern Europe and American bases in the Middle East.
VOA: special.2009.05.23
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How many combinations of codons are there if there's three bases and four possibilities at each base?
那密码子的组合方式到底有几种呢,三个位点,每个位点四种选择
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The government built a series of bases in the New Mexico territory to protect the settlers and goods moving along the Santa Fe Trail.
VOA: special.2009.03.30
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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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Scientists found the tropicalis genome contains more than one-point-seven-billion chemical bases along ten pairs of chromosomes.
VOA: special.2010.06.29
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To give you all the detail, there's two classes of bases that appear here.
为了尽量讲的详细,这里出现的碱基有两种类型
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Pope brought up all his soldiers, and others were on the way from bases near Washington.
VOA: special.2009.09.24
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As shown in this cartoon here, again you don't need to know the details of this, but if you're interested in knowing what's the biological bases of the genetic code this is it.
像这个动画里画的那样,这里你也不需要了解细节,不过如果你很有兴趣想知道,遗传密码的生物学基础
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He took his radio show to military bases from the South Pacific to Greenland.
VOA: special.2009.03.09
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It's the phosphate and the pentose that make up the backbone - that make up the upright struts of the ladder and it's the bases that make up the connecting struts, so the bases are the colors.
磷酸基和戊糖,共同构成了主链,主链又构成了梯子上下的支柱,而碱基,则构成连接支柱的梯阶,碱基是用各种颜色表示的
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And it was overseas naval bases that could defend American interests far from home.
VOA: special.2010.07.08
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It wouldn't be the same if I turned it upside down because the carbons - the rings here, the pentose's would all be turned over, the chemistry would look different and the sequence of bases would look different.
记住单链倒过来,就和原来不一样了,这是因为碳原子和糖环结构,戊糖会翻转,使得这个化学结构看起来不一样了,碱基的顺序也不一样了
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And the Air Force currently uses radar developed by DeTect at several bases.
VOA: special.2009.04.01
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Now the bases, and you don't need to memorize the structures of these I'm going - I'm describing the whole molecule to you in its molecular detail and then we're going to simplify it down to a version that we can talk about more easily.
现在讲碱基,你不需要记住这些结构,我将给你们详述整个分子,的结构细节,然后我们把它简化为一个模板,使我们更容易讨论
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Scientists have long known that DNA includes different amounts of four chemical bases.
VOA: special.2010.03.23
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While there are only four different bases that make up either RNA or DNA, and so the complexity of an RNA polymer is limited.
在RNA或DNA的构成中,只含四种不同的碱基,因此一个RNA分子的复杂程度是有限的
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One that's . 2 kilobases long and one that's 1.1 kilobases long - kilobase is 1,000 bases.
一段长0.2千碱基,另一段长,1.1千碱基,千碱基指一千个碱基
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