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1·AIM To study the propagation characteristic of vital signals in layered media.

目的频率域上研究生命信号在分层媒质中的传输特性。

2·With kernel medium model, sound propagation characteristic in grain is studied.

从颗粒介质模型出发，对粮食中声传播性质进行了研究。

3·The propagation characteristic of the VLF in the earth-ionosphere waveguide is analyzed by applying the FDTD method.

应用时域有限差分（FDTD）方法分析甚低频在地电离层波导中的传播特性。

4·The propagation characteristic of acoustic wave in borehole that penetrates compact carbonate formation is analysed by doing model experiment.

本文用模型实验研究了声波在致密碳酸盐岩地层井中的传播特性。

5·The propagation characteristic of nonlinear flexural wave in a prestressed beam buried inside nonlinear elastic foundation is studied in this paper.

研究了埋置于非线性弹性地基内预应力梁中非线性弯曲波的传播特性。

6·In this paper, the sound signal characteristic of moving wheel vehicle, track vehicle and mankind is obtained by analysing the propagation characteristics of the ground.

本文通过对大地传输特性的分析，得出了轮式车辆、履带式车辆和人运动时地声信号的特征。

7·Propagation characteristic of UHF radio wave in rectangle, circle and arched tunnels is studied in this paper and the computing equation for attenuation constant is deduced.

研究UHF频段的无线电波在矩形、圆形和拱形隧道中的传播特性，推导了衰减常数的计算公式。

8·There are many bends in mine tunnels, and it is necessary to know wave propagation characteristic in curved tunnels in order to realize wireless mobile communication of a whole mine.

实际矿井隧道有许多弯曲段，为实现全矿井的无线移动通信，需要知道在弯曲隧道中电磁波的传播特性。

9·The propagation characteristics of this model is analyzed. Emphasis is placed on the characteristic equation of different models, the cutoff conditions and the cutoff properties of the waveguide.

分析了该模型下的传播特性，重点讨论了各类模式下的特征方程、截止的条件及波导的截止特性。

10·Aiming at weakness of the existing ultrasonic absolute positioning method and the ultrasonic propagation characteristic, the fusion method for redundancy ultrasonic information (FMRUI) is proposed.

针对现有超声波绝对定位方法不足及超声波传播的特点，提出了冗余超声波信息融合法(FMRUI)。