伸展
发表于 2025-3-23 11:27:33
1 Spirometrie; dynamische longvolumes,em for chemical analysis.. in the last twenty years, the technique has developed to a high degree of sophistication and is presently accepted as one of the most useful rapid and economical analytical methods available. The method is simple and straightforward with commercial equipment and a high vacuum is not required.
生命
发表于 2025-3-23 17:49:33
https://doi.org/10.1007/978-90-313-8898-1microns of the surface of an otherwise pure material, (2) a realization of the potential for obtaining concentration changes both with depth and across surfaces, and (3) the facility with which elastic scattering can be combined with channeling (see Section 2.5) to reveal the location of foreign atoms in the unit cell of single crystals.
Assemble
发表于 2025-3-23 19:53:32
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Kernel
发表于 2025-3-24 00:23:07
X-Ray Fluorescence Analysisem for chemical analysis.. in the last twenty years, the technique has developed to a high degree of sophistication and is presently accepted as one of the most useful rapid and economical analytical methods available. The method is simple and straightforward with commercial equipment and a high vacuum is not required.
Fretful
发表于 2025-3-24 05:38:47
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defray
发表于 2025-3-24 09:35:12
Book 1974e developed for very high relative sensitivity, and the values determined were average values. Sampling procedures were devised which eliminated the so-called sampling error. However, in the last decade or so, a number of developments have shown that, for many purposes, the distribution of defects w
archaeology
发表于 2025-3-24 11:47:51
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分散
发表于 2025-3-24 17:04:54
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Hay-Fever
发表于 2025-3-24 23:03:55
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者变
发表于 2025-3-24 23:15:49
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