isotopes
英['aɪsətəʊps]
美['aɪsətəʊps]
- n. 同位素
- 名词isotope的复数形式.
详细释义
名词 isotope:
-
one of two or more atoms with the same atomic number but with different numbers of neutrons
双语例句
- 1. Such anomalies are due to the relative abundance of the "isotopes" or varieties of each element.
- 这种反常现象是由于同位素比较丰富或者各个元素比较多样化。
youdao
- 2. The isotopes of a given element have the same chemical properties but slightly different physical properties.
- 一个特定元素的同位素具有相同的化学特征，但在物理性质上有一些细微差异。
youdao
- 3. Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes.
- 在水中大多数氢原子和氧原子是稳定的，但这两个元素也有微量以较重的同位素形式存在。
youdao
- 4. She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
- 她经常把装有放射性同位素的试管放在口袋里，对试管里发出的漂亮的蓝绿光赞不绝口。
youdao
- 5. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline.
- 通过测量一束头发上较重的氢和氧同位素的比例，科学家可以构建一个地理时间轴。
youdao
- 6. 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.
- 给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。
youdao
- 7. Heavier isotopes tend to be left behind when water evaporates from the ocean surfaces, the remaining ocean water becomes progressively enriched in oxygen 18.
- 当水从海洋表面蒸发时，往往会留下较重的同位素，所以剩余的海水会逐渐富含氧18这种同位素。
youdao
- 8. 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.
- 研究人员对间冰期气候的线索来自保存在GRIP 冰芯中的两种略微不同类型的氧——即同位素氧-16和氧-18的比率。
youdao
- 9. 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，大约在同一时间，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的温度升高到导致内部进化的温度。
youdao
- 10. We talked about isotopes, and whatnot.
- 我们已经讨论了同位素等。
youdao
- 11. But isotopes can do more.
- 但是同位素的用处更多。
youdao
- 12. The technique dependsupon studying isotopes.
- 这项技术依赖于对同位素的研究。
youdao
- 13. The technique depends upon studying isotopes.
- 这项技术基于对同位素的研究。
youdao
- 14. Rhenium isotopes are used to treat liver cancer.
- 铼的同位素被运用于肝癌的治疗。
youdao
- 15. Isotopes Say New Origin Stories for Some planets.
- 听同位素讲述行星起源的故事。
youdao
- 16. This time, it is carbon isotopes that give the game away.
- 这一次是碳同位素泄露了秘密。
youdao
- 17. Two types, or isotopes, of hydrogen are used - deuterium and tritium.
- 它使用两种类型，或称同位素，的氢——氘和氚。
youdao
- 18. Isotopes are different atomic versions of a particular chemical element.
- 同位素是一个特定化学元素的不同原子变种。
youdao
- 19. If they are found on the same place, it is iso-topos. These are called isotopes.
- 如果是在同一个位置，按照国际惯例，它们被叫做同位素。
youdao
- 20. 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。
youdao
- 21. The best fuels for fusion are two types, or isotopes, of hydrogen - deuterium and tritium.
- 最好的核聚变材料有两种，即氢的同位素——氘和氚。
youdao
- 22. With this shortage of medical isotopes looming worldwide, other countries have begun to act.
- 随着医用同位素短缺的危机蔓延全球，其他国家开始展开行动。
youdao
- 23. Oxygen isotopes vary with the water cycle, and sulfur with bedrock, so they're location proxies.
- 氧同位素会随着大气水循环而变化，硫同位素则根据地球岩床的不同而变化，通过它们我们就能确定地理位置。
youdao
- 24. Once the reactor has shut down, there remains "decay heat" from traces of other radioactive isotopes.
- 一旦反应堆关闭，它仍热存在有来自其他放射性同位素踪迹的衰变热。
youdao
- 25. The most dramatic effect would have been on the formation of lithium, an element that has two isotopes.
- 效果最为强烈的便是锂元素的形成，这种元素有两种同位素。
youdao
- 26. 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。
youdao
- 27. That water signature is in the form of oxygen isotopes, atoms of oxygen with different Numbers of neutrons.
- 这个特征就是氧的同位素，它是由氧原子和不同数量的中子组成的。
youdao
- 28. 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。
youdao
- 29. 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并比较氡的两种同位素，以此来解密火山的活跃程度。
youdao
- 30. 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并比较氡的两种同位素，以此来解密火山的活跃程度。
youdao
- Later he named these separate forms isotopes.
后来他称这些不同的形式为同位素。 - Tritium is one of the mildest radioactive isotopes.
氚是辐射最和缓的放射性同位素之一。
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