Aphorism
发表于 2025-3-30 09:58:18
Gilbert Tournoyomparison of several independent methods directed at a single property. Accordingly, we shall illustrate the characterization problem by a brief consideration of selected concepts and methods of a fundamental nature.
alliance
发表于 2025-3-30 15:45:55
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Indigence
发表于 2025-3-30 17:56:21
Franz-Ulrich Willekee obtained by correct selection of the prism. . gives the useful infra-red frequency ranges for several types of prism, but it is towards the lower frequencies in the quoted ranges that the prism material is most efficient.