isotopes

英 [ˈaɪsəʊtəʊps] 美 [ˈaɪsəˌtoʊps]

n.  同位素
isotope的复数

柯林斯词典

  1. N-COUNT 同位素
    Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical properties.
    1. ...tritium, a radioactive isotope of hydrogen.
      氢的放射性同位素氚
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双语例句

  1. The technique depends upon studying isotopes.
    这项技术基于对同位素的研究。
  2. The interval is two mass units because these isotopes of the elements differ by two neutrons.
    因为这些元素的同位素相差两个中子，所以其间隔为两个质量单位。
  3. Indirect ionization by neutrons can also result from fission of plutonium or uranium isotopes.
    通过使钚或铀同位素裂变，中于也能产生间接的电离作用。
  4. None of the xenon isotopes we measured were the direct result of uranium fission.
    我们所测量到的氙同位素，根本都不是直接由铀的核分裂而来。
  5. The application of uranium isotopes to the study of sandstone type uranium deposits
    应用铀同位素研究砂岩型铀矿中的若干问题探讨
  6. In December 1978, the Pioneer Venus 1 probe and orbiter measured argon isotopes in the atmosphere of Venus.
    1978年12月，金星先驱者1号探测器和轨道飞行器，测定了金星大气层中的氩同位素。
  7. The rocks contained unusual ratios of two versions, or isotopes, of sulfur known as sulfur-33 and sulfur-32.
    这些岩石中包含着比值非同寻常的两种硫同位素，被称为硫-33和硫-32。
  8. They consider isotopes of great value for the study of high energy physics.
    他们认为同位素对研究高能物理学有很大价值。
  9. Isotopes can even indicate the order in which the planets formed.
    对同位素的考察甚至可以指出行星形成的次序。
  10. There are some radioactive isotopes which are produced artificially by bombardment of nuclei with neutrons.
    有几种同位素是用人工方法，以中子轰击原子核生产出来的。
  11. In certain fusion processes, among nuclei of the hydrogen isotopes, neutrons of high energy are liberated.
    在氢同位素原子核中的某些熔合过程中，会释放出高能中子。
  12. There are two main types of uses of radioactive isotopes in biochemistry.
    在生物化学中，放射性同位素主要有两方面的应用。
  13. Most isotopes produced artificially are radioactive.
    多数人工制造的同位素都具有放射性。
  14. The decisive evidence for isotopes came from two quite different experiments in 1913.
    对同位素的决定性证明来自1913年两个相当不同的实验。
  15. More reactive are the heavier isotopes of hydrogen, deuterium and tritium.
    更为活跃的是氢的较重同位素，氘和氚。
  16. A radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known.
    一种放射性超铀元素，用碳离子轰击锔而合成，已知有种同位素。
  17. Osmium isotopes in the natural isotopic mixture are separation by gas centrifuge technology.
    对天然锇同位素进行了离心分离。
  18. Ions of different isotopes converge at different points on the photographic plate.
    在照相底板上不同的同位素的离子会聚于不同点。
  19. In most cases, only stable isotopes of elements are found in nature.
    在大多数情形下，自然界中只能找到稳定同位素。
  20. Isotopes have the same chemical identity but different nuclear properties.
    同位素有相同的化学特性，但是原子属性不同。
  21. The separation of boron isotopes is studied by tunable TEA CO2 superradiance laser.
    提出了采用可调谐TEACO2超辐射激光器对硼同位素分离的研究方法。
  22. The climate change resulting from El Nio can be better recorded in isotopes of tree ring.
    研究表明，广东厄尔尼诺所引起的气候变化，在树轮同位素中有较好的记录。
  23. However, some of the minerals contain xenon isotopes unlike those usually produced by radioactive decay of uranium.
    然而，有些含氙同位素的矿物并非如此，是由铀的放射性衰变产生的。
  24. Carbon isotopes show a pattern, but it is somewhat more difficult to interpret than the oxygen isotope pattern.
    碳同位素显示的格局，但它是较为困难的解释比氧同位素模式。
  25. Applications and Progress of Lead isotopes in Environmental Geochemistry
    铅同位素在环境地球化学中的应用与进展
  26. One example is the use of lasers to separate isotopes.
    用激光分离同位素就是一个例子。
  27. Stable isotopes of carbon and sulphur are fractionated during cycling between surface reservoirs and geological reservoirs.
    碳、硫在表层储库和地质储库以不同的形式相互转换，在这个过程中都伴随着一定的同位素分馏。
  28. Case studies of biological effects on trace elements and stable isotopes
    生物对环境微量元素和稳定同位素的选择性及研究实例
  29. Atoms of the same element that differ in their atomic weight are called isotopes.
    具有不同原子量的同一种元素被称为同位素。
  30. The large number of radioactive isotopes among the heavy elements fit into three series.
    重元素中的大量放射性同位素分属于三个系列。
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