three-wave

On the basis of phase matching conditions of sum-frequency and frequency of three-wave coupled equations, analyze the feasibility of using double LBO to achieve the process of sum-frequency.

从和频三波耦合方程及其相位匹配条件出发，分析双LBO晶体和频的可行性。

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Meanwhile, we examine the conservation law of three-wave resonance system and the transformation of energy in the course of resonance excitation.

同时，还探讨了共振三波组的守恒律以及共振激发过程中能量的转换。

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Notes on Theoretical Analysis of the Second-Order Wave Forces in Three-Dimensional Diffraction Problem

三维问题中二阶波浪力理论计算的注记

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Theoretical research on beat frequency phenomena of harmonic drive with three-wave generator

三波谐波齿轮传动拍频现象的理论研究

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Combing the three-wave method, the corresponding connect boundary condition is given.

结合三波法给出了相应的连接边界条件。

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The three-wave interaction in a laser beat-wave accelerator are studied.

本文研究了激光拍频波加速器中的三波相互作用过程。

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Darboux Transformation of Three-Wave Equations

三波方程的Darboux变换

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General Dispersion Relation for the Three-Wave Process of Parametric Excitation(ⅱ) The Basic Formula, the Field Threshold and the Growing Rate

参量激励过程中三波耦合的一般色散关系（Ⅱ）一般色散关系以及泵场阈值和增长率

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Amendatory Calculation of the Acceptance Parameters in Three-Wave Interactions

非线性晶体三波互作用允许参量的修正计算

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Three-wave coupling process in parametric excitation is well studied under an isotropic, homogenous and collisionless ionospheric background.

讨论了在各向同性的均匀无耗电离层背景下激励参量不稳定性的三波耦合过程。

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Development of three-wave interactions in a plasma beat-wave accelerator

等离子体拍频波加速器中三波相互作用的时间发展

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The three-dimensional imaging software of the multi-wave detecting computer processes the test data and the imaging results match the given model.

用研制成功的多波检测计算机三维成像软件系统对观测数据进行处理，其成像结果与已知模型基本相符。

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For plane frame structure and three-dimensional frame structure, wave passage excitation can be implemented naturally, and there is no need to solve the classical governing equations for multiple support excitations.

对于二维和三维框架结构的地震响应问题，该方法在各支座处可以自然地引入行波激励，不需要求解经典的多点激励动力学方程组。

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The calculations of resultant wave force on three-dimensional frame structures

用矢量法计算三维框架结构物的总体波压力

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Several typical theoretical researches and experimental investigations in this field, including electron beam-plasma interaction, plasma local perturbation, three-wave interaction, are introduced.

本文着重介绍了几种典型的等离子体微波辐射理论和实验研究现状，包括电子束与等离子体互作用、等离子体局部扰动、三波互作用等。

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Then, the higher degree of accuracy of three-wave model is verified by annual temperature probability distribution map and the calculation of degree-hour.

然后通过全年温度概率图和度时数计算验证三波模型的较高精度。

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Induced refractive index change resulted from special three-wave mixing

特殊三波混频导致的介质折射率的感应变化

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Movement against the trend subdivides into a three-wave pattern or some variation involving several three-wave patterns.

逆大一级趋势运动的波浪细分为3浪模式或包含几个3浪模式的变体.

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The first section briefly describes the fluctuations theory of plasma and the three-wave coupling theory of magnetized plasma, then deducts the dynamic equations of the three-wave coupling system.

全文主要内容分三部分，首先，简述等离子体中的波动理论和磁化等离子体的三波耦合理论，推导得出三波耦合系统动力学方程。

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Study on the Bandwidth of Three-wave Mixing Optical Parametric Amplifiers

三波混频光参量放大器中带宽的研究

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At last we discussed the effects of phase variations and attenuations on the solitary waves in three-wave interactions and obtained some interesting results.

最后讨论了相位变化和衰减对孤波的影响，得到了一些有趣的结果。

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The dynamic characters and output characters of intra-cavity OPG were analyzed theoretically, according to the three-wave coupled equations and acousto-optic Q-switched four-level rate equation.

根据光学参量产生的耦合波方程以及声光Q开关运转的四能级系统速率方程，分析内腔OPG过程的动态特性以及输入输出特性。

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Study of Phase-Matching of Three-Wave Noncollinear Interactions Optical Parametric Process

三波非共线作用参变过程的相位匹配研究

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Combine with the three-wave coupled equations to discuss the impact of frequency conversion efficiency.

讨论被动调Q速率方程的解析解，结合三波耦合方程讨论影响和频转换效率的因素。

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WAVE FORCES ON LARGE ARBITRARILY SHAPED AND FIXED OFFSHORE STRUCTURES: Three-Dimensional Source Distribution Method

任意形状大尺度固定式近海建筑物波浪荷载的数值计算&三维表面布源法

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The three-wave method under the total internal reflection in PSTM was proposed and developed firstly, resolving the incident source technique problem.

首次提出和发展了光子扫描隧道显微镜（PSTM）系统中全内反射条件下入射波的设置方法&三波法，解决了激励源的设置问题。

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