修剪过的树篱
发表于 2025-3-27 00:16:55
S. A. Marshall verpflichtendes Erbe oder schlichter Sperrmüll sein können.. In einem weitergehenden sozialen Rahmen ist festzustellen, daß die meisten Menschen in den Industrieländern bislang kein bewußtes Verhältnis zu den verbrauchten Produkten besitzen (“Wegwerfgesellschaft”). War die Abfallabfuhr ursprünglich
百科全书
发表于 2025-3-27 02:10:05
Optical Physics and Engineeringhttp://image.papertrans.cn/o/image/702657.jpg
minaret
发表于 2025-3-27 08:03:08
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废墟
发表于 2025-3-27 11:36:12
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制定
发表于 2025-3-27 14:15:53
Infrared Photoconductivity,ids in order to obtain a fuller knowledge of the behavior of various solids of interest. Here, we will consider things from the opposite direction and discuss how photoconductive effects may be used to detect and measure infrared radiation.
歹徒
发表于 2025-3-27 17:48:40
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HALO
发表于 2025-3-27 23:37:38
Magneto-optics,The basis of magneto-optical effects in solids is, of course, transitions between the magnetically quantized electronic states. For free electrons, the nature of these states is well known from Landau’s [.] solution of the Schrödinger equation in a magnetic field.
吸引人的花招
发表于 2025-3-28 04:28:14
Luminescence,One of the outstanding properties of most electronic semiconductors is their ability to luminesce, that is, to emit electromagnetic radiation under proper excitation and under conditions of thermal nonequilibrium.
micronized
发表于 2025-3-28 06:51:56
Spectra of Ions in Crystals,The absorption and emission spectra for ions in solids are usually explained today in terms of the crystal field theory, or ligand field theory, as it is sometimes called.
aggravate
发表于 2025-3-28 10:49:46
Optical Properties and Electronic Structure of Amorphous Semiconductors,ong-range order is lost after several atomic distances. For the interpretation of the optical properties we shall use the latter model here, but the former model would give similar results. We shall show what information concerning the changes of the electronic structure due to the loss of the long-