The interaction properties of periodic waves are found to be inelastic.
研究了这些周期波之间的相互作用，发现其相互作用是非弹性的。
The periodic mean superposition method can predict the result through decomposing the hydrological time series into several periodic waves, extrapolating the periodic waves, and linear superposition.
周期均值叠加法将随时间变化的水文要素序列分离成若干个周期波，然后将周期波进行外延，再进行线性叠加，从而获得预报结果。
Conditions for the existence of solutions to periodic and isolated waves of limited amplitude are directly obtained based on qualitative geometric theory for ordinary differential equations.
利用微分方程解的几何定性理论，直接得到该方程存在有限振幅的周期波与孤立波解的存在条件。
As elastic waves propagate through disordered infinite linear periodic structures, localization phenomenon of elastic waves will appear.
弹性波在无限长直线型失谐周期结构中传播时，会出现弹性波局部化现象。
The second example is the asymptotic periodic solution and the dispersion relation of weakly non-linear waves in a self-gravitating medium.
第二个实例是自引力介质中弱非线性波的渐近周期解及色散关系。
Slow-wave systems generally employ periodic structures, and the electromagnetic waves transmitted therein are required to satisfy very complicated boundary conditions.
慢波系统一般采用周期性结构，其中传输的电磁波需要满足十分复杂的边界条件。
Localization of elastic waves in periodic piezoelectric structures is studied.
针对压电周期结构中弹性波的局部化问题进行了研究。
Square waves, like sine waves, are periodic.
方波如正弦波一样是周期性的。
The weak electric signal from stem and leaf of Rhododendrons is composed with periodic group waves.
杜鹃枝、叶微弱电信号波由具一定的周期性的组峰组成。
The eigen problems of spin waves in a homogeneous ferromagnetic bilayered system with periodic boundary conditions are solved by using the improved interface-rescaling approach.
采用改进的界面重参数方法，讨论了周期边界条件下同质双层铁磁膜中自旋波本征激发问题。
The periodic bar and beam structures are modeled as one-dimensional periodic wave-guides and the expression of transfer matrix of elastic waves is derived.
将周期杆梁结构看成一维周期波导，推导了结构中弹性波传递矩阵的表达式。
The active heating or periodic pulsed heating can be used to excite and cancel the T-S waves and also to control the boundary layers seperation.
以热脉冲加热的主动式加热方式既可用来产生和消除边界层的T-S波，也能用来控制边界层的分离。
Cell-to-Cell Mapping Method was used to study the periodic orbits and period-doubling bifurcations of a moored ocean production platform subjected to waves.
应用胞映射方法研究了系泊海洋生产平台的周期运动及其倍周期分岔。
The hydrodynamic forces of the lifting airfoil give a periodic response to regular waves and the response of the normal force is most notable.
升力翼水动力对规则波呈周期性响应，其中以法向力的响应最为显著。
The waves of the sea is the shape of the spread, and is left at the water quality, balance position periodic vibration and spread to certain direction, in the form of a wave.
海浪是海面起伏形状的传播，是水质点离开平衡位置，作周期性振动，并向一定方向传播而形成的一种波动。
Propagation of electromagnetic waves and some particular physical effects associated with two-dimensionally periodic medium are investigated.
本文研究二维正弦周期介质中电磁波的传播及其中的某些独特的物理效应。
Firstly, acoustic waves propagation in ID quasi-periodic system is studied by means of the transfer matrix method.
首先，研究了声波在一维准周期系统中的传播问题。
Firstly, acoustic waves propagation in ID quasi-periodic system is studied by means of the transfer matrix method.
首先，研究了声波在一维准周期系统中的传播问题。
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