您要查找的是不是：
- The propagation modes in selfco fiber, which features the laguerre Gauss distributions,are derived by solving the helmholtz wave equation incylindrical coordinates. 从亥姆霍兹方程出发，导出了自聚焦光纤中传导模在圆柱坐标系中的场分布形式，并给出了几个低阶模的分布图。
- The method has a wide application in wave propagation and signal processing. 它在求解波的传播和信号处理方面也有广泛的应用。
- The RF frequency, its propagation mode and the calculation of the electric field are analyzed. 基于隧道壁的特性以及接触网和轨道的存在，对于应用频率、传输模式、场的表示给出了符合实际的分析。
- The highly sophisticated electronic methods rely on either light or radio wave propagation. 较复杂的电子技术是利用光或无线电波传播。
- Attenuation Constant For a particular propagation mode in an optical fiber, the real part of the axial propagation constant. 衰减常数光纤中的一种特殊的传播方式,轴向传播常数的实际部分。
- The light wave propagates in a straight line. 光波以直线形式传播。
- The wave propagation along axis direction in piezoelectric hollow cylinder is studied. 对压电圆柱壳体内波的轴向传播进行了研究。
- An understanding of wave propagation in anisotropic crystals is a prerequisite to the treatment of a number of important topoics. 了解波在各向异性晶体中的传播是研究一些重要课题必不可少的。
- The propagation modes of internal acoustic field and the elasticity and wall thickness influence to them in a water-filled elastic tube waveguide were researched by applying the strict elastic theory . 本文采用严格的弹性理论,研究了水声声管的内部声场的传播模式以及弹性和壁厚对内部声场的影响。
- Here we discuss only two special types of wave propagation problems that have a direct bearing on both theoretical and applied seismology. 在这里我们只讨论和理论地震学及实用地震学都有直接关系的波动传播问题的两个特例。
- Based on the LS alg orithm, the mobile packet routing is implemented using the propagation mode of D BF algorithm and the global routing topology table (RTT). 基于链路-状态算法，采用距离-矢量算法的传播方法和全局的路由拓扑表，实现了移动分组无线网的抗毁式路由协议。
- The wave propagation in, perhaps, the most general model of a poroelastic medium is discussed. 摘要讨论了弹性多孔介质中波的传播的（或许是）最一般的模型。
- Violent earthquake waves will be produced when an underground spherically packed explosive is blasted,and their propagation mode is affected by many factors. 地下球形药包爆轰后将产生很强的地震波,其传播受到多种因素的影响。
- The finite element method was used to calculate elastic wave propagation in the medium. 本文采用有限元素法计算弹性波在介质中的传播。
- By using a rock failure process analysis code, RFPA(superscript 2D), the influence of heterogeneity on crack propagation modes in rock sample containing existing flaw is numerically studied. 摘要运用岩石破裂过程分析RFPA(上标2D)系统，通过对岩石试样中预置的倾斜裂纹扩展过程的数值模拟，研究了材料非均匀性对岩石介质中裂纹扩展模式的影响。
- Three major damage mechanisms, namely fault rupture, wave propagation, and soil liquefaction, are considered. 文中考虑三种主要的损坏机制，即断层错动、震波传递、以及土壤液化。
- Monitoring the comprethensive nuclear-test-ban treaty: regional wave propagation and crustal structure. 全面禁止核试验条约的监督：地面波...[中国核科技信息与经济研究院
- Since then, the theorem focuses on Rayleigh wave propagation on solid sphere and cylinder in this thesis. 中文摘要本论文之目的，在于研究主动式声纳对水下目标物之瑞利表面回波信号特性分析。
- The free transverse vibration in an axially moving beam on fixed support is investigated by wave propagation. 摘要用波传播法分析研究了两端固支轴向运动梁的横向自由振动。
- The surface wave propagation method was suitable for the measurement of dynamic shear moduli of particleboard. 不同方法测得的弹性模量值不同．但它们之间存在着一定的内在联系。
