考研英语阅览《经济学人》读译参阅Day2177_The_on_silica(考研英语阅读经验贴)

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text 2177

重做生命来历实验–一些要害细节被忽略(2)

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the attention was concentrated on modifying the atmosphere, on modifying the energy, the intensity, and modifying the analytical tools.and the role of the silica got forgotten entirely.dr. saladino’s team wanted to see if the glass was doing anything in the reaction.to test this they set up three different versions of the original experiment where everything was the same except the containers.for comparison they chose teflon which does not dissolve when holding an alkaline solution, the way the glass does.there is the experiment only glass, the experiment only teflon, and in the middle, there is the experiment in teflon with some pieces of glass added inside.then they used a technique called mass spectrometry to analyze what each reaction produced.mass spe

ctrometry is great for figuring out what kinds of molecules are in a complex mixture.they found that teflon produced very few organic compounds.

译文

留心力会集在了改动大气，改动能量，改动强度，改动分析东西上。二氧化硅的作用被完全忘掉了。萨拉迪诺博士的团队想看看玻璃是不是在反应中起作用。为了验证这一点，他们设置了三个不一样版另外初始实验，除了容器以外，一切东西都是相同的。作为比照，他们选择了聚四氟乙烯容器，因为聚四氟乙烯容器装有碱性溶液时不会像玻璃那样溶解。有实验只用了玻璃容器，有实验只用了聚四氟乙烯容器，也有折中的，实验用加了一些玻璃的聚四氟乙烯容器。然后他们运用一种叫做质谱分析的技能来分析每个反应发生的东西。质谱分析法关于断定凌乱混合物中的分子品种很有协助。他们发现聚四氟乙烯发生的有机化合物很少。

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there were more compounds in the teflon with glass pieces.but the glass container, by far, created the greatest number and largest variety of organic molecules.the mechanism of exactly how the silica helps catalyze the reaction is not clear yet–but it is very clearly does.the obvious question then is: was there silica available in the early earth environment?the water is not suspended in a vacuum.no? the water is in geochemistry, it is surrounded by minerals.borosilicate and silica are the most abundant minerals surrounding the water.the team has two next major objectives in mind.

译文

加了玻璃的聚四氟乙烯容器中富含更多的化合物。但到当前中止，玻璃容器创造了最大都量和最大品种的有机分子。二氧化硅协助催化反应的切当机理尚不理解，但很显着的确如此。那么清楚明晰的疑问是:在前期地球环境中是不是存在二氧化硅?水不是悬浮在真空中。没有? 地球化学中有水，它周围有矿藏质。硼硅酸盐和二氧化硅是水周围最丰厚的矿藏质。团队的下一个首要方针是两个。

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first, to try updating the experiment to model more closely the amount of silica that would have been available in the early earth.and second, they want to try replacing the silica with extraterrestrial minerals like, pieces of meteorite or rocks from other planets.apart from just being very cool, that could give a more concrete idea of how to look for life in space.but here on earth, coming one step closer to fully understanding why we exist is that much more satisfying.even after nearly 70 years, a key discovery in our complex origin story still carries new revelations.as the authors say in the paper: “the role of the rocks was hidden in the walls of the reactors.”thanks for listening for scientific american’s 60 second science, i’m sarah vitak.

译文

首要，测验更新实验，以更接近地仿照前期地球上可以存在的二氧化硅的数量。其次，他们想测验用地球外的矿藏质来替代二氧化硅，比方来自其他行星的陨石碎片或岩石。除了非常酷之外，这还可认为如何在太空中寻找生命供给更具体的主意。在地球上，间隔完全了解咱们存在的缘由又近了一步，这是令人满足的。即便在近70年之后，在咱们凌乱的来历故事中的一个要害发现仍然带来了新的启示。正如作者在论文中所说:“岩石的作用躲藏在反应器的容器壁上。”谢谢我们收听科学美国人——60秒科学。我是莎拉·维塔。回来搜狐，查看更多

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