本文研究弹性管中的流体非线性波问题。
The non-linear wave of incompressible fluid in an elastic pipe is studied.
本文讨论有阻尼的非线性波方程的边值问题。
This paper discusses the boundary value problem of the nonlinear wave equation with damping.
在适当的条件下，较简捷地得出了这两类非线性波方程的近似解。
Under appropriate conditions, the approximate solutions for two nonlinear wave equations are obtained simply and conveniently.
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