... 发散，散焦 divergence,defocussing 导行传播 guided propagation 亚折射 sub-refraction ...
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... 引导传播 guided propagation 印码电报机 recorder 印刷电报电码 printing-telegraph code ...
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guided propagation detail 定向传播
guided wave propagation 导行波传播
Guided-mode propagation analysis 导模传输分析法
Propagation characteristics of longitudinal ultrasonic guided waves of steel rod embedded in infinite medium are studied in theory.
从理论上分析高频纵向超声导波在埋于无限大介质中钢杆传播的特性。
Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward.
运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
The mechanism of zigzag dispersion curves in the Rayleigh wave exploration is theoretically analyzed. The propagation characteristics and interrelation of the guided waves are studied thoroughly.
对瑞利波勘探中“之”字形频散曲线形成的物理机理进行了理论分析，研究了诸波模的传播特性及相互关系。
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