该文研究了非线性随机效应模型，为非线性张度大的模型提供了理论和方法。
We discussed the nonlinear models with random effects, presented the theory and methods for the models with large nonlinearity.
在重构的相空间中研究了舰船辐射噪声的非线性特性，利用相似序列重复度这一参数，绘制了舰船辐射噪声rpt曲线并分析了其非线性特性。
In the phase space, by using the similar sequence repeatability (RPT) and plotting the RPT curves it proved the nonlinear characteristics of the underwater noise.
对于非线性动力学问题，给出了一个显式的精细积分算法，适用于多自由度、强非线性、非保守系统。
An explicit precise integration for nonlinear dynamics problems is presented, which is suitable to solve the non-conservative systems with multi-DOF and strong nonlinearity.
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