英语释义

1. any of two or more species of atoms of a chemical element with the same atomic number and nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties

2. nuclide

3. any one of various forms in which the atoms of a chemical element can occur

4. any of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behavior but with differing atomic mass or mass number and different physical properties

5. nuclide

片语

stable isotope[核] 稳定同位素

isotope separation[核] 同位素分离

Oxygen Isotopes氧同位素

International Isotopes美国国际同位素公司

isotope effect[核] 同位素效应

magnetic isotopes磁同位素

radioactive isotope[核] 放射性同位素

neodymium isotopes钕同位素

radiogenic isotopes放射性同位素

isotopes separated分离同位素

radioactive isotopes[核] 放射性同位素

chromium isotopes铬同位素

isotope analysis[核] 同位素分析

isotope geochemistry[地化] 同位素地球化学

xenon isotopes氙同位素

英汉例句

• Fusing heavy hydrogen isotopes requires lots of energy, partly because the nuclei are positively charged and repel each other.

  融合重氢同位素需要大量能量，部分原因是因为原子核带正电并相互排斥。

• This is because particular isotopes of strontium dominant within a geological region are digested by individuals living there and incorporated into their tooth enamel.

  依据是在一个地质区域内主要的锶同位素在被生活在该地的个体消化以后会被融进牙齿的釉质中。

• Willbold and his colleagues concentrated on investigating the ancient Greenland rocks for isotopes of tungsten, a metal that, like gold, has an affinity for bonding with iron.

  维尔博尔德和他的同事们集中研究了古代格陵兰巖石里钨的同位素，它们同黄金一样，也具有粘接铁的吸引力。

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

  不管怎样，伊朗可以从私人供应商那里买到医用核素，正像大部分其他国家那样。

• They believe that demand will rise not just for medical isotopes but also for Canada's CANDU reactors, which use a different technology from many elsewhere.

  评论家们认为需求增加的原因并不仅仅是医用同位素，还有加拿大坎杜型反应堆，它需要利用很多其他地方的不同技术。

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

  夏普和他的同事对此过程中两种氯同位素的情形进行了研究。

• By analyzing ratios of isotopes — variations of the same element with a different mass - he can learn things about the environment they lived in, such as temperature and salinity.

  通过分析其中的同位素(同一种元素拥有不同的质量)比例，他可以了解这些菊石所生活的环境特征，如温度和盐度。

• The collision spit out neutrons to create two isotopes of an element with 117 protons, one with 176 neutrons and the other with 177.

  撞击会生成两种拥有117个质子的同位素，其中一种元素有176个中子，而另一种元素有177个中子。

• Yet Australia has problems of its own with its single, albeit newish reactor, and has recently been importing isotopes from South Africa.

  尽管澳大利亚唯一的反应堆还是较新的，但仍存在不少问题，最近澳大利亚一直在从南非进口同位素。

• In this scenario, hydrogen would no longer be stable, but its slightly heavier isotopes deuterium or tritium could be.

  在这个设定中，氢不再是稳定的，但是其更重些的同位素氘和氚却是稳定的。

• The uranium or plutonium isotopes are referred to as 「fissile,」 which means we can use them to induce fission by bombarding them with free neutrons.

  铀或钚的同位素被称为裂变材料，即我们可以利用自由中子去轰击它们来产生裂变反应。

• It is geeky stuff and does not secure the low-grade nuclear isotopes that could be sprayed around in a 「dirty bomb」 -but it will help combat the threat of a terrorist nuclear attack.

  尽管这有点不伦不类，因为它不能防止低级核同位素的威胁——「脏弹」爆炸会在周围挥散出内含的低级核同位素，但这有助于阻止来自恐怖分子的核袭击。

• One of the radioactive materials released by reactors is radiative isotopes of iodine, which poses a serious health risk particularly to children.

  反应堆释放的一种放射性物质就是碘的同位素，其会人们尤其是儿童造成严重的健康损害。

• Rhenium isotopes are used to treat liver cancer.

  铼的同位素被运用于肝癌的治疗。

• The evidence lies in ocean mud, in fossil pollen, and in changes in ratio of chemical isotopes that record shifts in temperature.

  证据就存在于海洋泥土，花粉化石和记录温度变化的化学同位素比值变化之中。

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

  这两个发明者称他们的想法为「捷希凯」，就是用激光激发的同位素分离。