In the engineering applications of short-range HF no-blind zone communication, analyzing the propagation modes and characteristics of electromagnetic wave plays guidance role to engineering practice.
分析近距短波无盲区通信的电波传播方式及性能，对指导工程实践具有重要的意义。
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 possible propagation wave modes are pointed out.
指出了可能存在的波型。
The possible propagation wave modes are pointed out.
指出了可能存在的波型。
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