The computation methods of electromagnetism parameters, electromagnetic wave frequency and medium slice thickness in microwave measuring for composite material were analyzed.
分析了复合材料微波检测中电磁参量、电磁波频率和介质薄片厚度的计算方法。
In dynamic state all the medium parameters are complex functions verse frequency, and wave expression is also a complex function verse frequency.
在动态情形下所有的介质参数都是依赖于频率的复函数，波也用频率的复函数表示。
It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal.
它将有关低频脉冲信号对中频调幅后，利用被放大的调幅波电流对人体进行治疗。
The propagation velocity of elastic wave with different frequencies in same medium is various, which is called dispersive problem of frequency.
相同介质中不同频率的弹性波传播速度是有差异的，即频散问题。
Magnetic field distribution of low frequency electromagnetic wave in even medium is analyzed, which is related to the medium's dielectric coefficient and magnetic inductive capacity.
分析了低频电磁波在均匀介质中的磁场分布，其分布与介质的介电常数、磁导率密切相关。
A new symplectic geometrical high frequency approximation method for solving the propagation of electromagnetic wave in an inhomogeneous medium is presented.
提出了一种基于辛几何的高频近似的新方法，并用此方法求解了电磁波在一非均匀媒质中的传播问题。
Objective To investigate the effects o ultrashort wave and low-medium frequency electrotherapy on the patients with disc hernia after surgery.
目的观察超短波联合低中频电治疗腰椎间盘突出症术后神经功能恢复的临床疗效。
The Results indicate that the horizontal response of pile to Rayleigh wave is affected by frequency, character of soil medium, pile-soil rigidity ratio.
结果表明，饱和土介质中桩对瑞利波的横向响应受波的频率、土介质性质、桩—土刚度比等因素的影响。
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。
Formulas for 3d migration of seismic data in frequency-wave number domain are derived. The software and procedure used on medium -sized computer and minicomputer are given.
在频率-波数域中，详细地推导出了对地震记录进行三维偏移归位的全部计算公式，并给出了能在中小型计算机上实施的程序结构和流程。
Formulas for 3d migration of seismic data in frequency-wave number domain are derived. The software and procedure used on medium -sized computer and minicomputer are given.
在频率-波数域中，详细地推导出了对地震记录进行三维偏移归位的全部计算公式，并给出了能在中小型计算机上实施的程序结构和流程。
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