电磁波传播的速度和光一样。
分析甚低频电磁波传播路径与方式，给出场强的计算公式。
By analyzing transmission pathway and mode of VLF radio wave, calculation formula of field intensity is given.
电磁波传播测井仪器中发射器与接收器的一种特殊排列方式。
A particular arrangement of transmitters and receivers used in the electromagnetic propagation measurement in which the dipoles used as sensors are oriented along the axis of the tool.
平面电磁波传播的角谱法，提供了波的传播过程的另一种解释。
The angular spectrum method of plane electromagnetic wave propagation gives another explanation for wave propagation.
大气波导的影响是对流层电磁波传播研究的热点和难点问题之一。
Atmospheric duct is one of the hot-topics and difficult problems in the propagation of electromagnetic waves in troposphere.
文中采用辛几何方法得到了二维反射天线上电磁波传播问题的解。
Solution on electromagnetic wave propagation in a two-dimensional reflector antenna by Symplectic Geometrical Theory has been gotten.
本文研究了隧道中电磁波传播理论，提出了各种隧道的无线覆盖解决方案。
This dissertation mainly studies basic theory of electromagnetic wave propagation in tunnel, put forward a variety of wireless coverage solutions for the tunnel.
根据电磁波在无线信道中传播的随机特性，使用随机射线建模电磁波传播。
According to stochastic characteristics of electromagnetic wave propagating in wireless channels, stochastic rays are employed to model electromagnetic wave propagation.
研究叶簇对电磁波传播的影响对于雷达穿透叶簇探测隐蔽目标具有重要意义。
The effects of foliage on electromagnetic wave propagation are important in the detection of targets hidden underneath foliage.
依据阻抗匹配原理与电磁波传播规律，设计了具有阻抗渐变结构的双层吸波材料。
According to the resistance matching principle and electromagnetic spreading regulation, double-layer absorbing materials with resistance gradual changing structure were designed.
井眼补偿技术用于与波的传播有关的测量，如声波、传播电阻率和电磁波传播测量。
The technique is used for measurements that rely on the propagation of a wave, such as sonic, propagation resistivity and electromagnetic propagation measurements.
文章研究了电磁波传播的群速与相速概念，论证了信号传送与能量传递的必然联系。
The paper studies the concepts of phase velocity and group velocity on electromagnetic wave propagation and discusses the relation between signal conveyance and energy conveyance.
所得出的结论对电磁波传播测井曲线的解释和电磁波传播测井仪器的设计有一定意义。
The conclusion of the paper will be useful for EPT interpretation and logging tool design.
本文从坐标变换观点出发，给出分析多层介质波导中电磁波传播和散射的一种新的技术。
We present here a new technique for the analysis of the transmission and scattering in multilayer dielectric waveguides from the point of view of coordinate transformation.
大气波导会使雷达电磁波传播产生异常现象，研究其对雷达探测范围的影响具有重要意义。
Electromagnetic wave of radar propagates abnormally in the duct. It is very important to study the influence of the duct on radar detecting zone.
本文通过求解雷达散射截面得到了无源电磁散射板应用于微波接力通信中的电磁波传播参数。
Electromagnetic wave propagation parameters of passive scattering planes used in microwave radio relays are given by applying the method of solving the radar cross section (RCS).
抛物方程方法已经被广泛地应用于电磁波传播模型，并成为解决电磁波传播问题主要的工具。
The parabolic equation method has been used widely in the electromagnetic wave propagation model and becomes the main tool to resolve the problem of electromagnetic wave propagation.
通过对分层地电模型中电磁波传播的路径分析，我们导出了一种逐层向上的地电系统正演迭代关系。
We have deduced the upward forward iteration relation for a layered geoelectricsystem by analysing the propagation path of the electromagnetic waves in layeredgeoelectric model.
根据电磁场在包层边界应满足的基本关系，建立了描述其带隙结构的特征方程，给出了特征方程迭代求解的算法描述，为电磁波传播特性数值仿真分析提供了理论基础。
With the boundary conditions satisfied by the electromagnetic fields in the interface between the crystal and the clad, the characteristic equation to describe the band gap structure is deduced.
特别地，它们解释了，电动装置是如何运作，和电磁波如何传播，之类的问题。
And, in particular, they explain a lot of things such as how electric devices work, but also how electromagnetic waves propagate.
玛丽安：嗯，你知道光像电磁波那样传播，是吧？
Marian: Well, you know that light ACTS like a wave of electromagnetic energy, right?
电磁波，以光速传播，也就是30万公里，每秒。
Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.
马克思·威尔指出光是种电磁波，其在真空中的传播速度是个常数c。
Maxwell showed that light was a vibration in the electromagnetic field, and that it travelled at a constant speed, c, in a vacuum.
先前基于宏观电磁波(包含大量光子)的实验已经证明，光前驱是光脉冲在传播过程中最快的部分。
Previous experiments based on macroscopic electromagnetic wave propagation (involving lots of photons) have shown that the optical precursor is the fastest part in the propagation of an optical pulse.
不过，包括传播我们自己的电磁波在内的现代通讯方式正在试图寻在接触点。
However, more recent modes of communication have included beaming our own radio waves into space attempting to make contact.
但是现在在电磁波的例子中，传播的是哪一类变化呢？
What kind of changes are now spreading in the case of an electromagnetic wave?
分别建立雷达电磁波在干涉区、中间区和绕射区传播的数学模型和它们适用的边界条件。
The mathematical models and their limitative condition of radar electromagnetic wave propagated in interference region, intermediate region and diffraction region are set up respectively.
复射线理论为高频电磁波在各种复杂环境中的传播和散射提供了一种简便而有效的分析方法。
The complex ray theory provides a simple and useful approach to analyze the propagation and scattering of HF EM waves in various complicated environments.
复射线理论为高频电磁波在各种复杂环境中的传播和散射提供了一种简便而有效的分析方法。
The complex ray theory provides a simple and useful approach to analyze the propagation and scattering of HF EM waves in various complicated environments.
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