离开就切除 发表于 2025-3-23 11:01:17

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吃掉 发表于 2025-3-23 16:37:31

W. Kaufmanntructures with up to 50% of Al in the well material were grown by using low-pressure MOCVD and characterized by using X-ray, AFM, SEM and photoluminescence techniques. We observed stimulated emission at wavelength as short as 258 nm in Al.Ga.N/AlN MQWs grown on bulk AlN single crystals. These result

clarify 发表于 2025-3-23 21:32:36

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柔软 发表于 2025-3-23 23:43:28

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Lipoprotein(A) 发表于 2025-3-24 05:50:56

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暗语 发表于 2025-3-24 09:08:41

,Radioaktivität des Uraniums und Thoriums. Radioaktive Mineralien,Die von Herrn Becquerel entdeckten Uranstrahlen wirken auf gegen Licht geschützte photographische Platten; sie können alle festen, flüssigen und gasförmigen Körper durchdringen, vorausgesetzt, daß ihre Dicke genügend gering ist; die durchstrahlten Gase machen sie zu schwachen Leitern der Elektrizität .).

推崇 发表于 2025-3-24 13:50:55

Die Wissenschafthttp://image.papertrans.cn/u/image/943644.jpg

失败主义者 发表于 2025-3-24 16:57:07

https://doi.org/10.1007/978-3-663-13893-8Mineral; Radioaktivität; Strahlung; Uran

强有力 发表于 2025-3-24 19:28:53

W. Kaufmannn, insects, fish and birds. The base of the food webs supporting these animal populations is still poorly understood, but at many sites examined to date the biomass and energy flow in the lower food web is mostly associated with microscopic species of diverse nutritional modes: photosynthetic bacter

Infiltrate 发表于 2025-3-25 02:44:38

W. Kaufmannng approach has considerably improved the quality of such layers grown on sapphire substrates. Recent improvements in our epitaxial Pulsed Atomic Layer Epitaxy (PALE) technology have allowed us to grow very uniform high quality AlGaN heterostructures over four inch sapphire wafers. However, for deep
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查看完整版本: Titlebook: Untersuchungen über die Radioaktiven Substanzen; übersetzt und Litter S. Curie Book 1904 Springer Fachmedien Wiesbaden 1904 Mineral.Radioak