导波

The synthesis and design of the conventional filters; Further more, waveguide multiplexer and the general Chebshev filters with transmission zeros were introduced. Multipath coupling Equivalent Circuit are constructed and the relative phase shifts of multiple paths are observed to produce the known responses of the cascaded triplet and quadruplet sections.

给出了传统滤波器的基本理论和设计方法，继而介绍了波导多工器和广义切比雪夫滤波器的综合理论；分析了相位关系和交叉耦合的电路模型；给出了在腔体滤波器中实现交叉耦合的方法。

In this paper,we discuss an application of wireless communication based on microwave guide in the signal transmission in quayside container cranes with a throughput of at least 100 Mbit/s with interference-resistance.

基于微波波导的无线通讯方法在码头岸边集装箱装卸桥信号传输中的应用，并能提供超过100 Mbit/s的通讯速率，具有强抗干扰性，能满足岸桥对于无误差高速通信的要求，对于岸桥监控信号传输提供了一种新的选择

And the theory of far field output of radial slab waveguide laser which had a structure of imaginary confocal unstable resonators was established and was used for calculation.

建立了具有非稳虚共焦腔结构的辐射型平板波导激光器的远场输出的理论模型，并作了计算。

The results show that carefully controlling of deposition conditions and final polishing of the specimens enable us to deposit antireflective infrared diamond coatings on silicon substrate. In order to investigate the thermal properties of diamond coatings nondestructive photo-thermal radiometry method is used with computer simulation and data analysis to get thermal diffusivity and conductivity of the specimens.

本文用光热辐射计量学（Photo-Thermal Radiometry，PTR）方法对于金刚石薄膜的热学特性作了研究，用计算机模拟了热波在样品中的传播过程，用非接触无损检测方法测量了样品，并对测量结果用计算机作数据分析，计算获得金刚石薄膜的热扩散系数及热导率，为金刚石薄膜在热学方面的应用打下了基础。

According to the theoretical results, the sizes of groove and the curvature radius of bend can be reasonably chosen in design.

首先，本文在第二章采用耦合模理论分析了GNRD波导E面弯头的传输特性。

The elements of optical waveguide strain-stress measurement and fiber bragg grating strain-stress measurement system based on wavelength division multiplexing and spatial division multiplexing are emphatically discussed; the displacement regularity of stress field induced by roadway group excavating and short wall mining process is analyzed in detail; the concept of roadway "equivalent radius","correcting coefficient of coal and rock mass mechanical parameters",and "mining affecting coefficient" is put forward; the calculation method of "equivalent radius", the method of inversion of "correcting coefficient of coal and rock mass mechanical parameters", and the "mining affecting coefficient" determination method with the field measurement results and so on are provided.

重点研究了光波导应力应变测量原理，以及基于波分复用和空分复用技术基础上的布拉格光纤光栅应力应变测量体系；详细分析了近距离巷道群开掘工作和短壁体系回采工作诱发的应力场的重新分布规律；提出了巷道"当量半径"、"煤岩体力学参数修正系数"、"采动影响系数"等概念；给出了"当量半径"的计算方法、"煤岩体力学参数修正系数"的反分析求算方法、以及通过现

A measurement method of the reflection coefficient of the radome electrical thickness has been introduced.

利用短路波导法测量了材料介电常数和损耗角正切，测量结果显示：介电常数测量的精度和稳定度较高，损耗正切的测量误差较大。

The frequency and the circuit parameters of a rectangular reentrance resonant cavity have been studied by the unperturbed theory and the principle of the equivalent circuit of a ridged waveguide, respectively.

分别采用导体微扰原理和脊波导的等效电路参数，研究了矩形重入谐振腔的频率和电路参数。

In discussing the properties of reflection and refraction of fiber grating, the coupled-mode equation, envelope function, transform matrix formalism, multilayer and optical path approximation are used for describing the linear and nonlinear characteristic of optical fiber grating.

在分析光栅的反射和透射规律时，采用了耦合模式法，包络函数法，转换矩阵法，多层介质薄膜法以及光程法，这些方法虽然具有不同的数学和物理模型，但在分析光纤光栅这一特殊的波导结构时，可充分展现它的线性和非线性特性。

The stability problem leads to an ordinary differen-tial equation containing three parameters representing partialderivatives of a phase function.

一个非定常流动的稳定性问题被归结为求解三个未知函数为参数的微分方程的特征值，其三个参数分别是非线性扰动波的相函数的导数及圆盘运动速度的函数。

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。