profligate
发表于 2025-3-26 22:18:56
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狂热语言
发表于 2025-3-27 03:36:44
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极力证明
发表于 2025-3-27 05:41:08
Acoustic Modelling of Signature Reduction Materials for Underwater Applicationsrol sound transmission) and for signature reduction (to control reflection). Since sound propagates more readily between two media whose acoustic impedances are similar, the designer of multi-layered baffles and coatings is very much concerned with the need to control impedances at the boundaries of
神化怪物
发表于 2025-3-27 12:29:21
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Favorable
发表于 2025-3-27 15:56:33
Wave Passage Through a String Having Multielement Inclusions with Partial Interior Dynamicss by means of transverse ones and vice versa takes place in a very reliable mechanical model, which is often used not only in Mechanics, but in simulating various real physical processes. There exists a definite qualitative indeterminacy for the spatial multi-element system’s observable responses on
Gnrh670
发表于 2025-3-27 19:24:47
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遗忘
发表于 2025-3-28 01:22:54
978-90-481-6010-5Springer Science+Business Media Dordrecht 2002
反话
发表于 2025-3-28 05:13:40
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glacial
发表于 2025-3-28 06:55:29
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arrhythmic
发表于 2025-3-28 14:10:09
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