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。
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。
In order to study laser propagation in inhomogeneous medium, Collins formula was improved by using time inversion characteristic of optic phase conjugation wave.
为了解决非均匀介质中的光传输问题，利用光学相位共轭波的时间反演特性，实现了对克斯林衍射积分公式的改进。
Stress wave propagation equations that incident wave and reflection wave are condition vectors are derived from three discrete forms as well as the characteristic matrix of the force and the velocity.
推导了以顺波、逆波为状态向量的应力波传播方程和杆形部件的作用力、速度传播的特征矩阵；
The distribution characteristic of the magnetic dipole field is analyzed based on the propagation equations of underwater electromagnet ic wave.
基于电磁波在海水中的传播方程，分析了海水中磁偶极子辐射场的分布特性。
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。
Then, a approximate method for characteristic analysis is presented, which will pave the way for solving the stress wave propagation problems in anisotropic solid.
提出了一个简化特征分析的方法，这种方法将成为应用特征线法求解各类各向异性应力波问题的一个突破口。
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。
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。
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