介质

There are mainly three kinds of complicated medium and structure: inhomogeneous, waveguide and anisotropic media.

对于不均匀介质，人们开展了比较多的研究工作，本文集中研究了水下波导结构和各向异性介质中的时间反转法。

Inversion of wave propagation in inhomogeneous damaged media is studied, and damage degree is obtained according to received wave response.

介绍了波在非均匀损伤介质中的传播的反问题，根据波的响应来反演介质的损伤。

We have considered the analytic property of the integrand in the complex plane for the calculation of the Casimir force when the metamaterials are concerned, and based on the theory of the Casimir effect for real media situation, we obtained the formula of the Casimir force for the planar structures containing metamaterials.

通过考察分析复频率空间内的含特异材料的介质平面板间Casimir力被积函数的解析性质，根据实际的介质平板间Casimir作用力的计算理论，推导得到包含特异材料的平面板间Casimir作塑料托盘用力的计算公式。

The experimental results present that the three electrodes DBD is basically display filamentary discharge mode. The intermittent filament impulses of current wave of the comb-like electrode are unsymmetrical while that of the plate-plate electrode is symmetrical. And the multineedle-plate DBD displays diffuse conical mode.

实验结果表明：三种电极放电的形式不尽相同，但基本上以细丝放电为主要特征；在放电特性上，单面梳状电极DBD呈正负半周期内电流波形上加载非对称的电流脉冲群，双介质板电极DBD则是对称的电流脉冲群，而多针—介质平板电极放电电流波形上既加载了具有电晕放电特征的稀疏幅值大电流脉冲群，又加载了具有DBD放电特征的密集小幅值的电流脉冲群，表现为DBD和电晕放电相叠加的效果。

By making such effort, the conclusion has been drawn as follows: the redistribution of vertical force and transformation of coefficient of kinetic friction are the fundamental factors of ultra-low friction.

在具有构造等级的深部岩体介质的变形过程中，储能及返还性状与介质变形的摩擦因数有关。

While the new components having the same numbers with these original physical vectors are introduced and the new components are combined with those original physical components to form a new symplectic space, the ray problem of wave propagation in geometrical optics is converted into the problem of Lagrange submanifold in the symplectic space.

本论文的工作作为国家自然科学基金地震波传播与成像项目（NO.40174032）的一部分，得到如下结果：论文分析了利用Maslov方法求解非均匀介质中波动方程高频近似解的基本原理和求解过程，构造了介质系数只在一个方向变化时波动方程高频近似解的通用计算公式。

Using Fourier expansion, Laplace transforms and Hankel transforms with respect to the circumferential, time and radial coordinates, respectively, the partial differential equations are reduced to a set of ordinary differential equations. Transfer matrices for this situation are derived and explicitly solved.

利用Fourier级数和Laplace-Hankel变换，将该状态变量方程转换为两组一阶常微分方程组，提出了有限层饱和多孔介质空间非轴对称Biot固结问题的传递矩阵，得到饱和多孔介质空间非轴对称Biot固结问题在状态空间中的解。

It is based on the interaction of stress wave in medium and the law of reflection and penetration when stress wave encounters an interface of dissimilar medium or an unequal section.

本文利用工程中可实际运用的一维线性应力波理论，以应力波在介质中的相互作用及其在不同介质界面和不等截面上的反射和透射机理为基础，通过建立合理的由不同材料组成的力学模型，详细探讨了在炸药爆轰这一极其短暂的过程中，主要载荷参数、结构尺寸参数和材料参数等诸多制约因素对子母弹开仓过程和应力波传播的影响规律。

The Zn concentration in leaf and leafstalk increased with increasing Zn supply from 0 to 160 mgL^(-1), but had no increase or even decreased when the Zn supply was higher than 160 mgL^(-1). The Zn concentration in root exhibited a positive correlation with Zn supply and its exposure time, and the kinetic curve of Zn uptake fitted linear-quadratic model, i.e., fast linear uptake first and slow saturation uptake later, with the dividing point at about 1-2 hours' exposure, which could be related with the Zn adsorption on root cell wall and the Zn transportation across the cell membrane.

在0160 mgL^(-1) Zn处理下，植株叶片和叶柄Zn含量随Zn处理水平的提高显著增加，Zn浓度大于160 mgL^(-1)后，植株叶片和叶柄Zn含量不再随介质中Zn浓度的提高而增加，根系含Zn含量与介质中的Zn浓度和培养时间呈正相关，且根系Zn吸收动力学曲线具有二型性，即开始为快速的线性吸收，随后是较缓慢的饱和吸收，两者分界点约在12h，这可能分别与根细胞壁吸附Zn和Zn跨根细胞膜运输有关。

The theoretical analyses show that the left-handedness of medium will be enhanced with the increase of VIC effect.

研究表明，在出现左手效应的频率区间VIC效应强弱对介质相对介电常数和相对磁导率实部取值有显著影响，介质的左手效应随VIC效应的增强而增强。

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。