相速度随频率的增大以指数形式减小。
And the phase velocity of fast wave will decrease exponentially with frequency.
在眼震电图各种参数中以慢相速度最为可靠。
Speed of slow component is the most important parameter of electronystagmograph.
快纵波的相速度随频率的增大以指数形式减小。
And the phase velocity of fast wave will decrease exponentially with frequency.
用方程(4)可简单推导相速度和周期的关系。
Equation (4) permits a simple deduction of the relation between the phase velocity and the period.
笔者重点对瞬态瑞利波相速度的算法进行了研究。
The algorithm for solving phase velocity of transient Reyleigh wave was emphatically studied.
给出了圆柱管的一些参数对相速度和衰减的影响。
Then, the influences of some parameters on phase speed and attenuation are analyzed.
在这样的纵向电场作用下，等离子体波的相速接近光速。
The phase velocity of the plasma wave approaches the velocity of light due to the action of the longitudinal electric field.
表观相速度扰动程度随频率减小而增加，直至出现大扰动。
Disturbance degree of the apparent phase velocity increases with decrease of frequency until a maximum one occurs.
通过细化技术及干扰信号切除方法可提高相速度计算精度。
The precision of phase velocity calculation can be improved by the frequency zooming and the signal cutting techniques.
空间自相关法；瑞雷波相速度频散；圆形排列；微震勘探法。
Spatial autocorrelation method; Phase velocity dispersion of Rayleigh wave; Circular array; Microtremor survey method.
文中导出了声重波波长、相速、传播方向以及振幅的演变方程。
The evolution equations of wavelength, phase velocity, propagation direction and amplitude of the AGW packet are derived.
本发明涉及一种用于慢相速度的毫米波传输线结构及其操作方法。
The invention relates to a millimeter wave transmission line for slow phase velocity.
数值结果显示了在这种波导中能量的流向和相速度具有相反方向。
The numerical result shows that the power flow direction is reverse to that of phase velocity.
对轴上光场的相速度和群速度以及电子能量增益等物理特征作了讨论。
Some physical characteristics, such as phase and group velocities of the axial optical field, and energy gain of electrons etc.
结果表明，峰速不仅与水底坡度有关，而旦随水深的变化较相速复杂。
The results show that crest speed changes with the depth of waters far more complicatedly than the phase speed does:furthermore, it changes with the slope of the bottom.
在喇叭内部不同区域中重新分配能量和改变相速来获得幅度锥削和相位校正。
The amplitude taper and phase correction are obtained by redistributing energy and changing phase velocity in different region inside the horn respectively.
尤其在颗粒相和气相速度场以及其相互作用规律研究上缺乏理想的测量手段。
Especially there are few perfect measurement methods to be used in the study of particle, gas flow field and their reciprocity.
然后连续利用多元函数级数展开，导出群角表示的相速度和群速度近似公式。
Then series expansions of multi-variable functions are applied to the derived approximations in terms of phase angles to generate the approximations in terms of group angles.
利用此法可以求得包括两相速度、颗粒容积宁和压力等沿管道的分布的流动参数。
The flow parameters, included distributions of two phase velocities, particle volume fraction and the pressure along the pipe etc. , can been obtained by using this method.
对湿模式和干模式进行的对比实验表明，两者重力波传播的相速度有明显的差别。
The results of numerical experiments of wet model are presented and compared with that of dry model.
表面惯性重力波和惯性重力内波的相速公式都是这个更普遍的频率方程的特殊情况。
The well-known phase speed formulas of surface inertial gravity wave and internal shear inertial gravity wave are the special cases of this frequency equation.
然后从色散介质中相速度与群速度的关系，讨论了相速度和群速度超光速的可能性。
Then the possibility of larger phase velocity and group velocity than light speed in dispersive medium is discussed.
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.
根据以上算法求得的相速度更接近瑞利波真速度，从而提高了相速度的分辨率和精确度。
Based on the algorithm, the value of transient Reyleigh wave phase velocity is closer to true wave velocity, so the resolving rate and the definition of the phase velocity are improved.
在文中研究的烟气速度范围内，整体上气相速度的改变对液滴完全蒸发时间的影响很小。
In the range of flue gas velocity considered, the varying of flue gas velocity has a very small influence on the droplet's life time.
结果显示在高模态及振源影响下表面波有效相速度不仅与频率有关，而且与传播距离有关。
The results indicate that influenced by higher modes and the source, the effective phase velocity is related to frequency as well as the distance from the source.
把人造传输线的观点引入电光调制器，实现相速度的匹配，是近年来才兴起的一个新的分支。
It is a new branch that the artificial transmission line is introduced into optic electronic modulator, realizing phase velocity matched.
在以驱动波相速度运动的坐标系中，用微扰法讨论。在正弦波驱动下的非线性漂移波的分波方程。
The nonlinear drift-wave equation driven by a sinusoidal wave is discussed in a coordinate system moving in the driving phase speed.
然而，波的相速依赖于等离子体频率和结构尺寸，并且非常慢的波可以存在于非常小尺寸的波导中。
However, phase speed depends on plasma frequency and structure dimension, and very slow waves can exist in very small sized waveguide.
然而，波的相速依赖于等离子体频率和结构尺寸，并且非常慢的波可以存在于非常小尺寸的波导中。
However, phase speed depends on plasma frequency and structure dimension, and very slow waves can exist in very small sized waveguide.
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