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- sky wave propagation for low frequency 低频天波传播
- sky wave propagation curve 天波传播曲线
- sky wave propagation 天波传播
- Inevitably, some technically difficult problem must be solved, including the variety of speed about tropospheric propagation, the sky wave disturbance and the near-far problem. 但是,不可避免的遇到几个技术难题,包括无线电传播速度变化的影响,天波干扰问题,以及远近效应问题。
- On striking the earth, the sky wave bounces back again. 一打到地面,天波又弹跳回来。
- 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 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
- 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。