Monomania
发表于 2025-3-21 19:41:16
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怕失去钱
发表于 2025-3-21 22:01:56
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打算
发表于 2025-3-22 03:42:31
Averaging Method,ging were used, connected with the names Gauss, Fate, Delone-Hill and others. At this stage, the basic way of averaging was to replace the right-hand sides of complicated differential equations by averaged functions which did not explicitly contain either the time t or rapidly changing parameters of
琐碎
发表于 2025-3-22 05:38:24
https://doi.org/10.1007/978-3-319-30127-3A . system is a nonconservative system which possesses the ability to accomplish an undamped periodic oscillation, and is characterized by the presence of the following components:
色情
发表于 2025-3-22 10:12:47
M. Maroof Khan,M. Jamil Ahmad,Basharat JamilParametrically-excited oscillations are those which depend for their excitation upon the time-dependence of the parameters of the oscillatory system. The governing differential equations of this system have time-dependent coefficients, being generally periodic.
无意
发表于 2025-3-22 16:15:57
Energy, Transportation and Global WarmingLinear oscillatory systems satisfy the superposition principle, that is the component oscillations of a linear system do not interact among themselves. In mathematical terms this translates into: a linear combination of particular solutions of a linear differential equation is a solution of this equation.
反话
发表于 2025-3-22 18:28:34
Self-Excited Oscillations,A . system is a nonconservative system which possesses the ability to accomplish an undamped periodic oscillation, and is characterized by the presence of the following components:
绿州
发表于 2025-3-22 22:48:37
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使成核
发表于 2025-3-23 03:01:46
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VERT
发表于 2025-3-23 08:39:46
Applied Asymptotic Methods in Nonlinear Oscillations978-94-015-8847-8Series ISSN 0925-0042 Series E-ISSN 2214-7764