介质

Based on the two phase anisotropic model this paper analyses and presents the dynamic equations of elastic wave propagation, the Galerkin variational equation, and the finite element equation in two phase anisotropic media.

基于双相各向异性介质模型，首先推导了双相各向异性介质中弹性波传播的动力学方程及其Galerkin变分方程和有限元运动方程，然后给出了孔隙弹性波方程的有限元数值解法以及二维双相PTL介质中波场模拟的人为吸收边界条件。

Considered the viscous drag, inert force and form effects imposed by the porous solid matrix to the flow, a turbulent combustion model based on fundamental equations of combustion in porous media was developed.

考虑了多孔介质的粘性力、惯性力及形状效应，以多孔介质中燃烧的基本方程为基础，推导出了多孔介质中的湍流燃烧模型。

Based on existing theory of dielectric resonator, several difference configuration whispering gallery modes dielectric resonator and the characteristic of coupling between such a resonator and millimeter-wave transmission line are studied by means of electromagnetic theory, microwave theory and microwave circuit theory in this dissertation.

本文在现有的介质谐振器分析理论基础上，利用电磁场理论，微波理论和微波电路理论对几种不同的结构的边廊模介质谐振器和它与传输线间的耦合进行理论分析，并用数值计算的方法分析求解了这些边廊模介质谐振器的电磁参数和电路参数。

Using method of effective medium approximation , spheric or complex particulates distributing even in the air background medium is regard as the equivalent of whitecap in this paper .

利用有效介质近似的理论方法，将白冠层视为以空气为背景介质、均匀分布球形或复杂结构海水粒子的一层有效介质。

The experimental results indicate that, such sample has advantages of wide band, low loss and is easy to produce.

通过该实验对已报道的异向介质材料样品及新结构样品的测量均得到了预期的结果； 3、对多种异向介质的基本结构进行了分析和仿真研究，总结了构造新型微波异向介质的步骤和方法。

The efforts that have been made to explain optical phenomena by means of the hypothesis of a medium having the same physical character as an elastic solid body led in the first instance, to the understanding of a concrete example of a medium which can transmit transverse vibrations, and,at a later stage, to the definite conclusion that there is no aluminiferous medium having the physical character assumed in the hypothesis.

为了解释光学现象，人们曾经试图假定，有一种具有与弹性固体相同的物理性质的介质。这种尝试的结果，最初使人们了解到能传输横向振动的介质的具体实例。但后来却使人们得出了这样一个明确的结论：并不存在任何具有上述假定所认为的那种物理性质的发光介质。

The efforts that have been made to explain optical phenomena by means of the hypothesis of a medium having the same physical character as an elastic solid body led, in the first instance, to the understanding of a concrete example of a medium which can transmit transverse vibration but later to the definite conclusion that there is no aluminiferous medium having the physical character assumed in the hypothesis.

为了解释光学现象，人们曾试图假定有一种具有与弹性固体相同的物理性的介质。这种尝试的结果，最初曾使人们了解到一种能传输横向震动的介质的具体实例，但后来却使人们得出了这样一个明确的结论：不存在任何具有上述假定所认为的那种物理性质的发光介质。

Antimonate calcium precipitates in cell wall of hyphae grown for 5h in pH 4. 0 medium appeared less than in pH 6. 8 medium. And it was proved that pH in medium gradually reduced with the cultivation time during cultivation of hyphae.

在pH 4.0介质中培养5h后的菌丝，顶端细胞壁的焦锑酸钙沉淀比pH 6.8介质中培养的菌丝明显减少，并证实菌丝在生长过程中培养介质pH随培养时间的延长而逐渐下降。

Aside from pancreatic enzymes activiation and autodigestive process, recent investigations have established that the upregulation of inflammatory mediator are believed to be the critical steps in the progression of mild pancreatitis to severe pancreatitis. Tumor necrosis factor-, ThyomboxaneA2 ,ProstaglandinsI2 are all important inflammatory mediator. TNF-( is one of cytokines. It is important to the over-production of ICAM-1,VCAM-1, TXA2 andPGI2. The ICAM-1 and VCAM-1 mediate both leukocytes adhesion and migration through the endothelium into tissues to connect with injuried target cells. The TXA2 and PGI2 are the production of arachidonic acid. They are responsible for the tissue ischaemia.

肿瘤坏死因子（Tumor necrosis factor-， TNF-、血栓素A2（ThyomboxaneA2，TXA2），前列环素（ProstaglandinsI2，PGI2）均是炎症反应中重要的炎性介质，其中肿瘤坏死因子-是非常重要的细胞因子之一，它由活化的单核细胞产生，在细胞间黏附分子（Intercellular adhesion molecule-1，ICAM-1）及血管细胞黏附分子(Vascular cell adhesion molecule-1，VCAM-1的表达、血栓素A2及前列环素过量生成方面起着重要的作用，前两者是介导白细胞与内皮细胞黏附，迁移于组织并与受损的靶细胞相结合的主要媒介，是炎症反应中的重要介质，后两者是花生四烯酸的代谢产物，亦是重要的炎性介质，参与构成血液循环障碍。

Then the azimuthally phase and group velocity formulas of plane wave propagation in horizontal plane are deduced according to Christoffel equation, and the azimuthally dependent velocities in dry and water saturated cracked medium are calculated.

而后，根据Christoffel方程推导了由各向同性背景介质中含两组非正交的垂直裂隙而形成的等效单斜各向异性介质中，在水平面内随方位变化的相速度和群速度的计算公式，并对干裂隙和饱和流体填充裂隙介质两种具体情况进行了计算。

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。