确定无疑
发表于 2025-3-26 22:06:57
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植物群
发表于 2025-3-27 01:52:08
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制造
发表于 2025-3-27 05:43:11
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patriarch
发表于 2025-3-27 12:22:16
Formalization of Bing’s Shrinking Method in Geometric Topologyethod include the generalized Schoenflies theorem, the double suspension theorem for homology spheres, and the 4-dimensional Poincaré conjecture. Homeomorphisms obtained in this method are sometimes counter-intuitive and may even be pathological. This makes Bing’s shrinking method a good target of f
chandel
发表于 2025-3-27 14:16:39
Theory of Vibration,quations of motion are derived. Various damping models used for dissipation of energy are described. Forced vibration equations without damping and with viscous and structural damping models are covered. The determination of damping ratio using the log decrement method and the half power method are
foreign
发表于 2025-3-27 19:56:07
Book 2024omic development, mineral resources endowment and current status of mining development, mining investment environment, and cooperation in geosciences and mining industry between China and other SCO member countries. The aim of this book is to promote the practical cooperation in geoscience and minin