波导

The beam waveguide mirrors are placed in the steel tube segments in readiness for installation amongst the alidade structural beams.

束波导镜子放置在钢管部分准备安装在照准结构横梁。

A hollow light guide using the aluminum phosphor bronze reflector to transmit UV laser beams has been studied.

研究了一种由表面镀铝的磷青铜作为反射面的矩形型波导传输紫外光束的性能。

To avoid the "crowding phenomenon" in conformal mapping,approximate analytical expressions of characteristic parameter for CPW′s on a thin substrate have been derived.

本文推导出了薄衬底共面波导特性参数计算的近似解析表达式，避免了薄衬底保角变换中的"拥挤现象"。

Based on the Banyan construction and the PLC technology, and with the intersection linking angle of 30 degree, we fabricated a strictly nonblocking silica waveguide 4×4 matrix optical switch.

设计了基于Banyan网络的4×4光开关，连接波导交叉角为30°。

The results show that the beam-wave efficiency is not sensitive to the velocity spread, but is dependent on the period and depth of the helical corrugations, and that the efficiency in the present experiment may achieve 25.6% by optimizing the helical corrugation parameters.

结果表明：螺旋波纹壁圆柱波导回旋行波放大器效率对电子束速度离散不敏感，而对螺旋波纹开槽周期和开槽深度的依赖性较强；通过参数优化可望把目前实验的效率水平提高到25.6%。

In this thesis, multimode network technique combined with staircase approximate technique is used to establish a mathematical model to analyze the leaky wave antennas based on NRD guide with arbitrary transverse crosssections.

论文首先利用多模网络方法结合阶梯近似技术构建了适合分析任意截面形状的NRD波导漏波天线特性的数学模型。

Several numerical algorithms are applied to model the generalized chebyshev filters and diplexers by domestic and foreign researchers based on full-wave analysis. Designers pay much attention to the mode matching method because of its features of high precision and fast simulation speed in passive component design.

国内外学者运用多种数值算法对其进行全波建模，以便快速精确设计广义切比雪夫滤波器和波导双工器，其中，基于严格场理论的模式匹配法因其精度高、运算速度快等优点而得到国内外研究工作者的高度重视。

Multiple stepped rectangular waveguide bend and T-septum rectangular waveguide junction are the key blocks in the design of waveguide filters and diplexers. The above-mentioned junctions and bend are modeled by full-wave mode matching method.

本文采用模式匹配法全波建模了这三种波导接头，并在建模过程中采用了奇偶模理论，简化了公式推导和程序编写，完善了原有的模式匹配法程序库。

Multiple stepped rectangular waveguide bend and T-septum rectangular waveguide junction are the key blocks in the design of waveguide filters and diplexers. The above-mentioned junctions and bend are modeled by full-wave mode matching method.

本文采用模式匹配法全波建模了这三种波导接头，并在建模过程中采用了奇偶模理论，简化了公式推导和程序编写，完善了原有的模式匹配法程序库。3利用所编写的电磁仿真程序和商业仿真软件，优化设计并加工了一系列微波滤波器和双工器。

A set of CAA software is developed.

CAA 以全波分析为基础，包括了在实际的H 面波导结中各种可能存在的模式，分析是完备的。

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。