| 词汇 | alpha-decay |
| 释义 | alpha decay noun[ U ] physics specializeduk /ˌæl.fə dɪˈkeɪ/ us /ˌæl.fə dɪˈkeɪ/ the process in which a radioactive substance breaks down and emits(= produces) an alpha particleα衰变，阿尔法衰变 Physical & chemical processes absorbable absorptive absorptive capacity absorptivity acidification endothermic reaction excitation excite exergonic exothermic exothermic reaction fermentation impregnate reabsorb react reboil recondense redox scald vaporize Examples of alpha decayalpha decay The first decay processes to be discovered were alphadecay, beta decay, and gamma decay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The half-life of this alphadecay was first measured as 150 days and then corrected to 162.8 days. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sg which decays through alphadecay and spontaneous fission, with a half-life of around 2.4 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sm primarily decay by alphadecay to isotopes of neodymium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Cleveite was the first known terrestrial source of helium, which is created over time by alpha decay of the uranium and accumulates trapped (occluded) within the mineral. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sg which also decays through alphadecay and spontaneous fission. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sg which decays through alphadecay and spontaneous fission, with a half-life of around 2.1 minutes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Seaborg first reported alphadecay proportionate to only a fraction of the element 93 under observation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Bi undergoes alphadecay with a half-life of approximately 600 yottaseconds (1.9 years), over a billion times longer than the current estimated age of the universe. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Due to the alphadecay of thorium and uranium, monazite contains a significant amount of helium, which can be extracted by heating. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Mendelevium-256, the chemically most important isotope of mendelevium, decays through electron capture 90.7% of the time and alphadecay 9.9% of the time. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most of these decay predominantly through alphadecay, but some undergo spontaneous fission. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A half-life of 0.89 ms was calculated: decays into by alphadecay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alphadecay typically occurs in the heaviest nuclides. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Lighter astatine isotopes have quite high energies of alphadecay, which become lower as the nuclei become heavier. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of alpha decay These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
| 随便看 |
|
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。