" A problem I've been advertising as an isotopic crisis."

“我一直在宣传的一个问题是同位素危机。”

This is the isotopic composition of the animal's bones and teeth Hydrogen apart.

这是动物骨骼和牙齿中的同位素组成，氢除外。

In addition, the lunar rock samples show similar isotopic signatures to terrestrial rocks, unlike those found on Mars or elsewhere in the solar system.

此外，月球岩石样本显示球岩石相似的同位素特征，这火星或太阳系其他方发现的岩石不同。

So if someone moves from one place to another, bones synthesized after that move will also reflect the new isotopic signatures of the surrounding environment.

因此， 若有人从一个方迁移到另一个方，迁移后合成的骨骼也将反映新环境周围的同位素特征。

The only way maybe you could tell is by looking at the isotopic strata to see if there was anything reminiscent of an industrial civilization.

也许唯一能判断的方法是通过观察同位素层来查看是否有任何类似于工业文明的痕迹。

But more recent, detailed studies which analyse the isotopic data in more detail have pushed the consensus away from farming and rubbish dumps and towards swamps.

但最近对同位素数据进行分析的研究已将共识从农业和垃圾场转向沼泽。

By  examining the isotopic composition, scientists would be able to tell if it was unusual when  compared to the dust given off by our own star.

通过检查同位素组成，科学家们将能够判断它我们自己的恒星发的尘埃相比是否异常。

Ask a pair of geochemists how something like this works, and they will start talking about isotopic abundances and ionization levels with an enthusiasm that is more endearing than fathomable.

要是你问两位球化学家这工作是怎么进行的，他们会滔滔不绝谈到丰富的同位素、离子化程度，等等，这些听上去很可爱，但不容易搞明白。

Problem is, as scientists have taken more and more precise isotopic measurements of the Moon they've found that it's nearly identical in composition to the Earth—not some other object.

问题是，随着科学家们对月球进行越来越精确的同位素测量，他们发现月球的成分几乎球相同，而不是其他物体。

Now, he says, a new theory in the journal Nature Geoscience may at least point to a way out of that isotopic crisis of the moon's chemical isotopes so closely resembling Earth's.

现在， 他说，《自然球科学》杂志上的一项新理论可能至少指了解决月球化学同位素球非常相似的同位素危机的方法。

By comparing the isotopic composition of the particles Stardust collected  with samples from our own solar system, it was proven that Comet Wild 2 originated from the solar  system.

通过比较“星尘号” 采集的颗粒同位素成分太阳系内样本，证实了维尔德2号彗星起源于太阳系。

By comparing the isotopic composition of the  particles Stardust collected with samples from our own solar system, it was proven that  Comet Wild 2 originated from the solar system.

通过比较收集到的星尘粒子太阳系样本的同位素组成，证明维尔德 2 号彗星起源于太阳系。

So to determine how much of the stuff was truly interstellar—from beyond our solar system—the researchers used other isotopic clues to screen out quantities of iron-60 produced by nuclear reactions and cosmic rays.

因此，为了确定有多少物质是真正的星际物质——来自我们的太阳系之外——研究人员使用其他同位素线索来筛选核反应和宇宙射线产生的铁 60 的数量。

The research is interest was in the isotopic ratios in the teeth under investigation of two chemical elements oxygen and strontium Atomic nuclei are made of protons and neutrons known collectively as nucleons.

研究的兴趣在于被调查牙齿中的两种化学元素——氧和锶的同位素比率。原子核由质子和中子组成，统称为核子。