• The early Earth contained abundant radioactive materials.

    早期地球含有丰富放射性物质

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  • We must imagine the early Earth as a mixture of rocky materials, metals, and trapped gases, subject to constant bombardment by smaller planetesimals and without much of an atmosphere.

    我们必须想象早期地球岩石材料金属封闭混合物受到较小星子持续轰击没有多少大气

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  • Despite its color, Titan actually seemed to look a lot like the early Earth.

    除开颜色不同以外,“泰坦实际上似乎早期地球

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  • Evolution: small changes in the chemistry of the early Earth gives rise to life.

    进化早期地球赋予生命提升小小的化学变化

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  • We know a great deal about the creative chemistry of the early Earth, but not yet enough to solve this problem.

    我们知道大量有关地球早期创造化学不足以解决这个问题。

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  • We know a great deal about the creative chemistry of the early Earth but not yet enough to solve this problem.

    我们知道大量有关地球早期创造化学不足以解决这个问题。

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  • But the idea that the early Earth got its water from ice-laden comets ploughing into its surface is still popular.

    但是早期地球载满了冰的彗星带入观点依旧很流行

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  • With the effect of that collision kinetic energy converted into heat energy, the surface of the early earth melted.

    碰撞动能转变热能作用下,造成早期地球表面熔融

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  • 'a lot of the evidence shows that ammonia was not present in much abundance in the early Earth, so where did it come from?'

    大量证据表明早期地球并不存在丰富所以来自哪儿

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  • The finding could mean that various building blocks of life were common in pools of water on the surface of the early Earth.

    意味着早期地球表面巨大海洋各种构成生命的基本成分是很常见的。

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  • There, scientists expect to find the same conditions as those in the early earth-and perhaps the same life-forms that thrived then.

    科学家希望那里发现与地球早期相同状况也许还可以发现在地球早期蓬勃生存生命形式

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  • Analyses of Huygen's images and data show that Titan's surface today has intriguing similarities to the surface of the early Earth.

    惠更斯号发回的图像数据分析显示目前土卫六表面原始地球表面奇妙相似

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  • The major current hypothesis holds that life arose spontaneously on the early earth by means of chemical evolution from nonliving substances.

    主要电流假说生活早期自然通过化学演化物质生物

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  • Researchers believe that our moon was created when a giant object the size of Mars hit the early Earth, sending out a disc of debris orbiting our planet.

    研究学者认为我们月球一个巨大如火星物体撞击地球时形成的,碰撞产生圆形的碎屑沿着地球轨道飞行。

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  • The present book gives a coherent account of this scenario, embedding the more specific results within a broader framework that considers the creation and evolution of the Early Earth.

    目前前后一致描述脚本嵌入更多具体结果考虑创造早些时候地球演化架构

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  • Many scientists now attribute much of the warming of early Earth to oxygen-intolerant microbesmethanogensthat produce the greenhouse gas methane.

    现在许多科学家早期造成地球变暖大部分原因归结于厌氧微生物——产甲烷菌——产生温室气体甲烷

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  • Since early times, people have been fascinated with the idea of life existing somewhere else besides earth.

    很早以前人们沉迷于地球之外存在生命想法

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  • Earth has been able to support life because its position relative to the Sun provided it with enough heat, but not too much heat for early bacteria to evolve.

    地球之所以能够维持生命是因为相对太阳位置提供足够的热量热量没有到可以早期的细菌进化。

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  • Volcanic carbon dioxide in Earth's early atmosphere kept Earth warm enough for life to begin during the time when the Sun was too dim to provide much warmth.

    地球早期大气中的火山二氧化碳使地球足够温暖,保证生命太阳过于昏暗而无法提供足够热量时候能够得以孕育。

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  • Early life-forms on Earth were confined to the oceans because water was the only available protection they had against ultraviolet radiation.

    地球早期的生命形式限制在海洋里因为帮助它们抵御紫外线辐射唯一有效保护

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  • The Earth was such an active thing in its early history that it could have been there and degassed to the point that you can't see it anymore.

    地球早期历史一个如此活跃的物体以至于能够那儿,然后消除某个然后再也看不到这些东西。

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  • While there are scientists who think RNA could have arisen spontaneously on early Earth, others say the odds of such a thing happening are astronomical.

    尽管有些科学家认为RNA可能自然产生早期地球上,而一些科学家却认为发生这种事情可能性犹如天方夜谭。

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  • To learn more about how the sun and other stars work, after early observations using rockets, scientists began studying the sun from Earth orbit.

    为了探索太阳其它恒星工作原理早期观测活动后,科学家使用火箭开始地球轨道上对太阳进行研究

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  • Aldrin holds nothing back when talking about how bad things were when he fell to earth in the early 70s.

    奥尔德林毫不讳言自己70年代返回地球后的情况如何糟糕

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  • It allows us a little window into what was happening on the Earth at its very early stages.

    我们了一我们了解地球早期发生的事情”。

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  • An object about the size of mars-half the size of earth-slammed into our planet very early in its formation, the theory says.

    这个理论认为早期时候,地球曾经被一颗火星大小(相当于地球体积的一半)的行星撞击。

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  • A rocket belonging to India's space agency lifted off from the Sriharikota space station in Andhra Pradesh early Monday, putting a cluster of ten satellites into earth orbit within minutes.

    星期一早上印度宇航局火箭安得拉邦斯里赫里戈达航天发射场发射升空,几分钟之内搭载的颗卫星送入地球运行轨道

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  • But Mr Ogiso's team, mostly in their early 30s, wanted to create something that would "do the Earth good", as he puts it.

    但是,小先生团队大多30出头,已经想着怎么创造一些所说的“地球比较好”的设计了

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  • The theory: the theory here is that the early Middle Ages never existed and we have been counting the earth almost 200 years older than it actually is.

    理论这个理论认为中世纪早期是从未存在过的,我们计算的年份地球实际年份提前了200

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  • The theory: the theory here is that the early Middle Ages never existed and we have been counting the earth almost 200 years older than it actually is.

    理论这个理论认为中世纪早期是从未存在过的,我们计算的年份地球实际年份提前了200

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