查询词典 medium wave

For the first time, we study the radio afterglow behavior during the trans-relativistic phase of the fireball shock wave. Considering the trans-relativistic shock dynamic and the synchrotron self-absorption effect of the relativistic electrons on the radio emission, we find that the dense medium model can not only explain the fast decline of the X-ray and optical afterglows of GRB980519, but also account for its radio afterglow quite well.

我们首次研究了致密介质情形下射电余辉在跨相对论阶段的行为，发现考虑到激波的跨相对论动力学和相对论电子的同步自吸收效应对射电辐射的影响，致密介质模型既可以解释GRB980519的快速衰减的X射线和光学余辉，也可以很好地解释其射电余辉的特点。

Electromagnetics course mainly including basic phenomena and laws of electro- magnetics, electrostatic field in vacuum, in conductor and in electric medium, electric energy, stabilized current, stabilized magnetic field and its basic laws, electric and magnetic fields caused by a moving chager in lower speed, the transform of electric and magnetic fields between different systems of coordinates, inductive laws, eddy field, self inductance, mutual inductance and transient, molecule current and magnetic substance, ferromagnet, boundary conditions, magnetic circuit theorem, energy of magnetic field and density of magnetic energy, displacement current, Maxwell's equation, electromagnetic wave, Poynting vector.

电磁学课程的主要内容包括：静电的基本现象和基本定律，真空中的静电场，导体和电介质中的静电场，电场的能量与电场能量密度，稳恒电流，稳恒电流磁场的基本定律，运动电荷的电磁场，不同参照系之间电磁场的变换，电磁感应定律，涡旋电场，互感，自感，暂态过程，分子电流与磁介质，铁磁体，边界条件，磁路定理，磁场的能量和磁能密度，位移电流， Maxwell 方程组，电磁波和玻印廷矢量等。

When solid deformed,two wave, compress and shear, are set off in medium.

这两种波在介质中传播时的速度不同，这决定于介质的弹性模型和密度。

Small and medium-sized board refused impact of the shock wave has emerged.

263冲击中小板被拒的冲击波效应已经出现。

We can draw some further conclusions from the theory of sound as a wave propagated through a material medium.

我们还可以根据把声看作是在物质介质中传播的波的理论从而推出另外的结论来。

Electromagnetic theory ; Sommerfeld type integral ; Uniaxial anisotropic medium ; Expansion of spherical wave function.

电磁理论；索末菲尔德积分；单轴各向异性媒质；球面波展开式

First, First term formulae are deduced systematically which describe spherical wave propagation in elastic medium.

首先系统地推导了球面波在弹性介质中传播的首项公式。

Refraction: The change of direction of a light ray or energy wave from a straight line as it passes obliquely from one medium to another in which its velocity is different.

折射：当光线或能量波倾斜着穿过一种媒介到另一种媒介时，由于光线在两种媒介中的传播速度不同，导致其传播方向发生偏转。

Plasma is a dispersive medium and its equivalent refractive index is related to the frequency of the incident electromagnatic wave and the plasma frequency, so it is feasible to shift the syntonic frequency of plasma defect by changing the plasma parameters, which behaves as a tunable filter.

据等离子体的强色散特性，其等效折射率与电磁波频率及等离子体频率等参数有关，因而可以通过改变等离子参数，使一维微波光子晶体缺陷层的谐振频率发生偏移，实现微波光子晶体的可调谐滤波特性。

However a transverse wave apparently required the propagating medium to behave as a solid, as opposed to a gas or fluid.

然而，一个横波显然需要传播媒介像一个固体，而非一种气体或液体。

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。