... ultrasonic propagation characteristic 超声波传播特性 atmospheric propagation characteristic 大气传输特性 characteristic propagation 特征传播 ...
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cross propagation characteristic 横向传播特性
dual propagation characteristic 双传播特性
ultrasonic propagation characteristic 超声波传播特性
atmospheric propagation characteristic 大气传输特性
characteristic of propagation 繁殖特性 ; 传播特性
wave propagation characteristic 波传输特性
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。
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。
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)。
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