• Such anomalies are due to the relative abundance of the "isotopes" or varieties of each element.

    这种反常现象由于同位素比较丰富或者各个元素比较多样化。

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  • The isotopes of a given element have the same chemical properties but slightly different physical properties.

    一个特定元素同位素具有相同化学特征物理性质上有一些细微差异

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  • Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.

    水中大多数氢原子氧原子稳定的,这两个元素微量较重同位素形式存在

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  • She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.

    经常装有放射性同位素试管放在口袋里,对试管里发出漂亮绿光赞不绝口。

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  • By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.

    通过测量头发较重同位素比例科学家可以构建一个地理时间轴

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  • All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass.

    给定元素所有同位素都含有相同质子数它们中子不同因此它们的原子质量也不同。

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  • Heavier isotopes tend to be left behind when water evaporates from the ocean surfaces, the remaining ocean water becomes progressively enriched in oxygen 18.

    海洋表面蒸发时往往留下较重同位素,所以剩余海水逐渐富含18这种同位素。

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  • Researchers' clues to the Eemian climate come from measurements of the ratios of two slightly different types of oxygen, isotopes oxygen-16 and oxygen-18, preserved in the GRIP core.

    研究人员间冰期气候线索来自保存GRIP 冰芯中的两种略微不同类型——即同位素氧-16氧-18的比率

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  • About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.

    然而大约同一时间科学家们意识到彗星可能含有衰变的放射性同位素,这些同位素可能使彗星内部温度升高导致内部进化的温度。

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  • We talked about isotopes, and whatnot.

    我们已经讨论同位素等。

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  • But isotopes can do more.

    但是同位素的用处更多。

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  • The technique dependsupon studying isotopes.

    这项技术依赖于对同位素的研究。

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  • The technique depends upon studying isotopes.

    这项技术基于对同位素的研究。

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  • Rhenium isotopes are used to treat liver cancer.

    同位素运用于肝癌的治疗

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  • Isotopes Say New Origin Stories for Some planets.

    同位素讲述行星起源故事

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  • This time, it is carbon isotopes that give the game away.

    一次同位素泄露了秘密。

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  • Two types, or isotopes, of hydrogen are used - deuterium and tritium.

    它使用两种类型称同位素——

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  • Isotopes are different atomic versions of a particular chemical element.

    同位素一个特定化学元素不同原子变种

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  • If they are found on the same place, it is iso-topos. These are called isotopes.

    如果同一个位置,按照国际惯例,它们叫做同位素。

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  • The inventors called their idea Silex, for separation of isotopes by laser excitation.

    两个发明者他们想法“捷希凯”,就是激光激发同位素分离

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  • The Standard Model makes clear predictions for the ratios of various isotopes of all three.

    标准模式理论清楚地预测3元素多种同位素出现的比率

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  • With this shortage of medical isotopes looming worldwide, other countries have begun to act.

    随着医用同位素短缺危机蔓延全球其他国家开始展开行动。

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  • Oxygen isotopes vary with the water cycle, and sulfur with bedrock, so they're location proxies.

    同位素随着大气水循环变化同位素则根据地球床的不同而变化,通过它们我们就能确定地理位置

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  • Once the reactor has shut down, there remains "decay heat" from traces of other radioactive isotopes.

    一旦反应堆关闭,它仍存在来自其他放射性同位素踪迹衰变热。

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  • The most dramatic effect would have been on the formation of lithium, an element that has two isotopes.

    效果最为强烈便是锂元素形成这种元素两种同位素。

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  • In any event, Iran could buy medical isotopes it needs from private suppliers, as most other countries do.

    不管怎样伊朗可以私人供应商那里买到医用核素正像大部分其他国家那样

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  • That water signature is in the form of oxygen isotopes, atoms of oxygen with different Numbers of neutrons.

    这个特征就是同位素,它是由氧原子不同数量中子组成的。

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  • Sharp and his colleagues studied what happened to two isotopes of the element chlorine during that process.

    夏普同事对此过程两种同位素情形进行了研究

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  • Sims USES radioactive clocks to decipher volcanic processes, measuring and comparing two isotopes of radon.

    西姆斯使用放射性计时器测定比较两种同位素,以此解密火山的活跃程度。

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  • Sims USES radioactive clocks to decipher volcanic processes, measuring and comparing two isotopes of radon.

    西姆斯使用放射性计时器测定比较两种同位素,以此解密火山的活跃程度。

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