介质

The transform formula of partially polarized GSM beam in dispersive and absorbing media as well as in anomalously dispersive media is derived.

利用张量方法导出了部分偏振GSM光束在色散吸收介质和负色散介质中的传输公式。

The author creates the AutomaticallyDiscriminational Model for the Classification of Sandstones System, thatis to say, people can complete the vastly sample s classification of sandstonesaccurately and swiftly, meantime, diminish the possibility of mortal mistake. Based on the study of the basic sandstone component before embedding, the typeof authigenic mineral, and the forming mechanism of porosity in Upper Paleozoicreservoirs in Ordos basin, the author selects the reasonable experiment objects forWater-Rock Interaction modeling study, designs the relatively reactant and resultantduring the diagenesis period, builds the solid-liquid thermodynamics model with theprinciple of thermodynamic phase equilibrium for kinds of primary minerals (potashfeldspar, albite, anorthite, and pyroxene, hornblende) which dissolve in acidic media,and forms the corresponding thermodynamics test database.

在对鄂尔多斯盆地上古生界储层砂岩埋藏前组成、自生矿物类型和孔隙构成研究的基础之上，确定合理的沉积盆地水—岩相互作用模拟研究的实验对象，设计了埋藏成岩过程有关反应的反应物和可能的生成物，并通过热力学相平衡原理，建立了碎屑岩在埋藏成岩过程中各种骨架颗粒(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在酸性介质条件下发生溶解的固体—流体相化学反应热力学计算模型，并获得了相应的热力学数据库，在此基础上对储层砂岩中主要造岩矿物(钾长石、钠长石、钙长石以及铁镁暗色矿物中的辉石、角闪石等)在埋藏成岩过程的酸性介质条件下发生溶解的热力学习性进行了论述。

The comparison between the results of diffusion approximation and Monte-Carlo method is given.

本章在上一章的基础上对THz光在双层介质中的传播和散射作Monte-Carlo统计模拟，得到了其在双层介质表面的漫反射特性。

A.The highly corrosive media refer to all organic and inoragnic and inorganic acid media that can almost completely ionize in the water solution,apart from hydrofluoric acid,hot aquafortis and strong base.

a。强腐蚀介质——指除氢氟酸，热浓磷酸，强碱外的在水溶液中几乎能全部电离的各种有机、无机酸性介质。

The implicit TDMA algorithm and first kind of firstorder upwind difference were employed to solve the conservation equation associated with appropriate boundary conditions.

通过分析离心力场作用下铝熔液在Al2O3短纤维多孔介质内的渗流传热现象，考虑离心惯性力对渗流传热过程的影响，建立了多孔介质渗流传热模型。

In a special case when the boundary is perpendicular to one asymptotic line of the hyperbola, phase matching can not be achieved unless the 1DLHM is regarded intrinsically lossy.

在具有双曲线色散特性的一维各向异性异向介质界面上，当双曲线的渐近线垂直于界面时，平面波的折射反射行为只有在介质被考虑为有损的情况下才能得到合理的解释。

When the elliptical coaxial line becomes a circular coaxial line, the mode eigenequation of the circular coaxial line can be obtained from the mode eigenequation of the elliptical coaxial line using the asymptotic formulae of angular and radial Mathieu functions.

研究表明：当椭圆退化为圆时，利用角向和径向马修函数的渐进关系，可得到填充多层介质的圆形同轴线的模式特征方程，由此可见，圆形同轴线可看作椭圆形同轴线的特例；当椭圆同轴线内导体半长轴大小为零时，则椭圆同轴线就变成椭圆波导，同样的方法，可得到填充多层介质的椭圆波导模式特征方程。

According to first-order reaction, nitrobenzene's total natural attenuation rates constant are 0.063 5/h and 0.005 9/h respective of silt medium and sand medium.

根据一级动力学方程计算得出，硝基苯在淤泥介质中的自然衰减总速率常数为0063 5/h，在砂砾介质中的自然衰减总速率常数为

The retardation coefficients are 2.22 and 1.74 of silt medium and sand medium respectively. According to first-order reaction, s total natural attenuation rates constant are 0.0635/h and 0.0059/h respective of silt medium and sand medium.

根据一级动力学方程计算得出，硝基苯在淤泥介质中的自然衰减总速率常数为0.0635/h，在砂砾介质中的自然衰减总速率常数为

The anisotropy of phase velocity, quality factor and attenuation were studied, and then, the effect of attenuation anisotropy of the cap rock on AVO analysis was investigated.

目前，对介质衰减各向异性性质的研究主要集中在均匀介质中，而衰减各向异性对反射地震数据的影响则较少考虑。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。