hedonist
发表于 2025-3-21 16:06:33
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分开
发表于 2025-3-21 20:44:43
Lothar Rolken all fields of this expanding subject. In atomic spectroscopy, for example, where the principles required in a student text have been laid down for many years, there have been advances in optical pumping and double resonance which cannot be neglected at undergraduate level. In addition, nuclear qua
温室
发表于 2025-3-22 01:16:17
f the outermost electrons in free atoms or ions, thus excluding, for instance, X-ray spectra, which are the subject of other articles in this Encyclopedia.. Also the influence on atomic spectra of external magnetic and electric fields—that is, the Zeeman and the Stark effects, is treated elsewhere.
nitroglycerin
发表于 2025-3-22 08:01:50
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ELATE
发表于 2025-3-22 09:27:25
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共同确定为确
发表于 2025-3-22 15:24:52
t the same time, the results obtained from other investigations are discussed when they have particular bearing on the vibrational studies. It is hoped that none of the work discussed has been subsequently disproven, except when this is pointed out in the text, but in several cases interpretations a
calorie
发表于 2025-3-22 20:55:27
Ulrich Manzed is equal to one quantum of the incident radiation—but the energy of quanta at these frequencies is very small, and is only about a ten-millionth of an electron volt. The small splittings necessary to produce absorption in the radiofrequency region are those normally associated with the hyperfine
使隔离
发表于 2025-3-23 00:51:43
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粘土
发表于 2025-3-23 04:50:49
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外星人
发表于 2025-3-23 09:13:31
Klaus Güntherill be located at the C2-beam line of the Low Energy Antiproton Ring (LEAR) at CERN. We will take data at cm-energies between .= 1.88 GeV (i.e. stopping antiprotons) and .= 2.43 GeV. In the corresponding mass range almost fifty mesons are known, most of them well understood as bound states of a quar