生理信号已经被证明是混沌信号，它具有广泛的非线性动力学特征。
The physiology signal has been proved to be chaos signal by academia.
本文讨论非线性弹性动力学方程组的外问题。
In this paper, we deal with the exterior problem for the nonlinear elastodynamic system.
本文讨论非线性弹性动力学方程组的外问题。
In this paper, we deal with the exterior problem for the nonlinear elastodynamic system.
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