orient 发表于 2025-3-23 10:48:44

Renata Reisfeld,Christian Klixbüll Jørgensenfidence on its conclusions on the impact of education on growth. This research is sketched. Another approach makes use of observations at the level of individual industries to measure the association between the educational attainments of workers and productivity growth. This research confirms the n

ELUC 发表于 2025-3-23 15:39:34

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温和女孩 发表于 2025-3-23 19:58:54

Renata Reisfeld,Christian Klixbüll Jørgensenn landscape while simultaneously figuring out the rules and expectations, both implicit and explicit, which shape every facet of the collegiate experience. In addition, it is unlikely that they will find many familiar markers that reinforce their lived experience, further solidifying the concern tha

遗弃 发表于 2025-3-24 00:49:26

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初学者 发表于 2025-3-24 02:54:25

n landscape while simultaneously figuring out the rules and expectations, both implicit and explicit, which shape every facet of the collegiate experience. In addition, it is unlikely that they will find many familiar markers that reinforce their lived experience, further solidifying the concern tha

反话 发表于 2025-3-24 08:57:15

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可耕种 发表于 2025-3-24 12:40:33

Rare-Earth Lasers,rsion in the active element of the laser. The conditions for laser action were first described by Schawlow and Townes in 1958. The first demonstration of laser action was achieved in ruby by Maiman . In the last 15 years a systematic search was conducted for new laser systems using trivalent

伴随而来 发表于 2025-3-24 16:40:58

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AUGER 发表于 2025-3-24 20:52:40

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Formidable 发表于 2025-3-25 00:49:15

Applications and Suggestions,to a certain extent imitating the behaviour of monatomic entities in a dilute gas) and on the other hand the stimulated emission of coherent laser light. Obviously, we can refer only very superficially to laser technology (giving a few references), but we want to devote a few pages to the discussion
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查看完整版本: Titlebook: Lasers and Excited States of Rare Earths; Renata Reisfeld,Christian Klixbüll Jørgensen Book 1977 Springer-Verlag Berlin Heidelberg 1977 La