竞选运动
发表于 2025-3-23 13:21:25
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Meander
发表于 2025-3-23 15:41:06
Nuclear Isomerism, low-lying energy levels ordinarily found in radioactive decay processes are bound states in the sense that they are stable against the emission of protons or neutrons. While it is to be expected that any bound excited state has a finite and definable lifetime it is clear that the measurement criter
疏忽
发表于 2025-3-23 20:12:17
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钢笔记下惩罚
发表于 2025-3-24 01:38:12
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小口啜饮
发表于 2025-3-24 03:40:48
The Nuclear Photoeffect,γ-rays emitted by ThC”. They detected the photoprotons by their ionization in the deuterium gas and measured their energy. By performing a similar irradiation with the γ-rays of 1.8 Mev energy of RaC, and observing almost no ionization due to photoprotons, they were able to deduce that the threshold
BRAVE
发表于 2025-3-24 08:06:36
Angular Correlations, the term “angular correlation” is normally applied, concerns the decay, by the emission of successive radiations., of radioactive nuclei, and of nuclei which have been produced in unstable excited states. These radiations may be detected at particular directions with respect to the decaying nuclei
Altitude
发表于 2025-3-24 11:06:28
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entice
发表于 2025-3-24 15:19:36
6楼
NICE
发表于 2025-3-24 20:45:52
6楼
Obsequious
发表于 2025-3-25 03:05:37
6楼