Time transfer by laser pulses is based on the propagation of light pulses between satellite and ground clocks or between remote clocks on THC Earth.
激光时间传递是通过激光脉冲在空间的传播来实现地面与卫星时钟或地球上远距离两地时钟的同步。
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。
In this paper, the ground wave scattering from a complex target is investigated by combining the FDTD technique of solving the semi-space scattering problem with the theory of ground wave propagation.
本文把求解半空间散射问题的FDTD技术与地波传播理论相结合，研究任意复杂目标的地波散射特性。
The signals was measured of electromagnetic wave propagation on the ground.
对具体地面电波传播的信号进行测试。
The propagation of explosive seismic wave in half-space is calculated by applying incomplete separation variable method, so the movement fields of response of ground particles are received.
运用不完全分离变量法的理论计算爆炸地震波在半空间内传播，得到地表质点响应的运动场。
Compared with the seismic responses of free homogeneous half space, the results present the effect of vertical cracks on the propagation of seismic wave and the ground motion near the fault site.
计算结果与均匀半空间自由场做了对比，以说明竖向地裂缝对地震波传播和附近地面运动的影响。
The surface disturbance is termed ground roll and may include Rayleigh and other vertical and horizontal modes of propagation.
地面扰动称为地滚波，它可能包含瑞雷波和其它纵、横形式的波动。
On this basis, on the ground have a certain explosive charge at high altitudes to simulate the explosion has been in certain situations at high altitudes in the air blast propagation.
在此基础上，对地面有一定爆高高度装药进行数值模拟，得到了在一定爆高高度情况下爆炸冲击波在空气中传播规律。
On this basis, on the ground have a certain explosive charge at high altitudes to simulate the explosion has been in certain situations at high altitudes in the air blast propagation.
在此基础上，对地面有一定爆高高度装药进行数值模拟，得到了在一定爆高高度情况下爆炸冲击波在空气中传播规律。
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