The leakage of microstrip line has two forms: the surface wave form and the space wave form, and the higherorder modes on microstrip line mostly leak as space wave form.
微带线泄漏一般分为表面波形式和空间波形式两类，其中微带线高次模泄漏一般以空间波的形式发生。
2
In this paper we study the initial-boundary value problem for some nonlinear higher-orderwave equation with nonlinear damping and source terms.
研究一类带非线性阻尼项和源项的高阶非线性波动方程的初边值问题。
3
In chapter two, the (3 + 1) dimensional weakly nonlinear ion acoustic wave at higherorder transverse perturbations in plasma was discussed and described by the Kadomtsev-Petviashvili (KP) equation.