漂白 发表于 2025-3-26 22:52:34
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Ryan M. Nefdt,Carita Klippi,Bart Karstensaluating the stress state in backfill is a critical step for design of backfilled stopes. An analytical method to evaluate the stress is proposed in this paper. Nonuniform distribution of vertical stress is considered in this method. The trajectory of minor principle stress in the fill from the centARBOR 发表于 2025-3-27 12:48:37
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Fuchen Ban,Qiu Jin,Meiran Lial: The second edition, which appeared in 2005 and contains substantial - dates and amendments compared to the ?rst one and its corrected reprints, was again favourably received by the students and the scienti?c community worldwide. Asaconsequence,thepresentthirdeditionbecamenecessary.Thechanges intendoscopy 发表于 2025-3-28 03:22:45
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tudierende und ausgebildete Lehrer.Unterstützt Studierende b.In diesem Buch werden Problemstellungen aus verschiedenen Bereichen der Physik – der Mechanik, Optik, Akustik und Messtechnik - mit Tabellenkalkulation und Computerprogrammierung behandelt. Schrittweise bespricht der Autor erst die physikaFluctuate 发表于 2025-3-28 14:06:26
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