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北京石油化工学院2026年研究生招生接收调剂公告
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超级老快

木虫之王 (文学泰斗)

[求助] 求汉译英一段话,谢谢大家!

Ag的外层电子构型是4d105s1,容易失去一个电子,形成Ag+。同样,Ag+在近紫外的吸收光谱也是由于电子从4d10能级跃迁到4d95s1的能级。实际上,核外电子的4d10-4d95s1的这种跃迀在自由的离子中是宇称禁止的,但在固体中,通过电子与奇宇称晶格振动的耦合,这种跃迁又是部分允许的。由于玻璃结构的无序性,处于不同位置的Ag+的发射就会形成一个宽的发射带。处于最低激发态的Ag+由于自旋耦合和玻璃中局部有序的环境,发生了能级劈裂,形成3D3、3D2和3D1多个激发态能级。
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genhunter

至尊木虫 (著名写手)

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超级老快: 金币+100, ★★★很有帮助 2017-01-05 09:03:07
The configuration of electrons of the outer shells for Ag is 4d105s1, which readily loses an electron to form Ag+. The absorption spectrum of Ag+ at the near ultraviolet region is also due to the transition from 4d10 to 4d95s1. In reality, 4d10-4d95s1 transition is parity forbidden for free ions, however in a solid state, by coupling electrons and lattice vibrations of odd parity, this transition is partially allowed. Due to a disorderly structure of glass and the random location of Ag+ ions, the emission is typically a broad band. As a result of self spin coupling and some ordered environment in localized regions within a glass, Ag+ ions at the lowest excitation state undergo a split in energy level, and form multiple excitation energy levels, such as 3D3, 3D2 and 3D1.
离成功还差一点
2楼2017-01-05 08:58:50
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