The singularities of ground Penetrating Radar (GPR) echo wave signals can show the characters of objects or the layer structures under the ground sufficiently.
雷达回波信号奇异点携带了大量地下目标物的信息，是借以分析地下物质结构的重要依据。
Through the seismic wave exploration by us in A2 and A3 working faces, the conditions, velocity, frequency and penetrating distance of seismic wave in the main mining seams are understood preliminary.
通过在A 2、A 3两个面的槽波探测工作，初步了解了其主采煤层的槽波条件、波速、频率和槽波穿透距离。
Methods: in view of the radioactive rays wave length, the penetrating power, the fluorescence function, the photographic function and the biological effect to analyze radio formation a mechanism.
方法：针对放射线的波长、穿透力、荧光作用、摄影作用和生物效应分析放射性形成机制。
The results of theory and experiment are consistent, which can provide a reference to study technology which forecast gas outburst danger by electromagnetic wave penetrating.
实验与理论研究的结果相吻合，从而为利用电磁波透视法预测煤层突出危险性技术的研究奠定了基础。
Theoretical deduction says that in a borehole penetrating elastic formations, pseudo Rayleigh wave does not take shear-wave velocity, but its group velocity may be very close to shear-wave velocity.
推演说明在弹性地层的井眼中，伪瑞利波不可能以横波速度传播，但其群速度与横波速度可以非常接近。
Ground Penetrating Radar (GPR) is a geophysical prospecting method by using reflection of high-frequency electromagnetic wave to detect target and underground medium distribution.
探地雷达非一类当用上频电磁波的反射探测纲的及地上介量开布的物探方式。
The structure of the lid is designed according to the wave penetrating theory and is optimized by using finite element method.
结构设计依据电磁透波原理，并应用有限元进行结构优化。
The structure of the lid is designed according to the wave penetrating theory and is optimized by using finite element method.
结构设计依据电磁透波原理，并应用有限元进行结构优化。
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