枫树
发表于 2025-3-26 22:09:47
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不幸的人
发表于 2025-3-27 03:45:28
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extinct
发表于 2025-3-27 06:04:51
,Effect of Earthquake on Underground Metro Tunnels—A Parametric Study,and RC liners reduces from 1 to 0.1. Increasing the thickness of RC liners causes the axial force in RC liners to reduce but bending moment has been found to increase. These points need to be borne in mind while designing the support systems for the tunnels.
诱使
发表于 2025-3-27 10:49:17
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拱形面包
发表于 2025-3-27 17:37:15
Applications to One-Electron Atoms,e conveniently included in the class of “one-electron” atoms. A model that represents the closed-shell positive ion core of these atoms by an effective static potential is well justified, so that low-energy electron scattering is essentially a two-electron problem for both hydrogen and the alkali metals.
CRP743
发表于 2025-3-27 18:39:52
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