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This paper deals with the aberrations of optical systems consisting of cylindrical components with their axes, parallal and having a common axis of symmetry.

本文首先由柱面系统中描写光线所须的参数和对称性，确定了同轴柱面系统的独立象差数是八个，而对无限远物体而言则只有六个。

The abnormal block and black round structure of 50 axletree steel was studied and analyzed using optical microscopy, transmission electron microscopy, electron probe and so on.

产生这种组织的主要原因是50车轴钢锻造后混晶现象严重及存在特别粗大晶粒。

This paper presents the optical illusion of the ambiguity axonometric projection and the deformation of the stereogram, and use many courses knowledge to analyse the cause then get some important conclusions.

针对观看体视投影图出现体视合像变形、非单义性轴测投影图的视错觉，运用多学科的知识来分析原因，探讨消除对策，得到了一些重要的结论。

Vegetative storage proteins in the Melia azedarach L. were identified by using optical microscopy and SDS-PAGE.

以不同季节的苦楝枝条为研究对象，利用光学显微技术和SDS-PAGE技术研究其枝条中贮藏蛋白在休眠期和生长期的分布情况。

Vegetative storage proteinsin the Melia azedarach L.were identified by using optical microscopy and SDS-PAGE.

以不同季节的苦楝枝条为研究对象，利用光学显微技术和SDS-PAGE技术研究其枝条中贮藏蛋白在休眠期和生长期的分布情况。

The nonlinear optical properties of two novel covalently bonded azobenzene polymers are studied.

研究了两种新的共价键联型含偶氮聚合物材料的二阶非线性光学性质。

The third order nonlinear optical coefficient of a novel azobenzene compound was investigated by using Z-scan technique.

采用Z扫描技术对一种新的偶氮苯类化合物的三阶非线性光学系数进行了测量。

A new type of optical storing material, the film sample of azobenzene disperse red polymer is measured by using the single beam Z-scan technique.

采用单光束Z扫描技术对新型光学存储材料偶氮分散红聚合物的薄膜样品进行了测量。

In the thesis, the nonlinear optical properties and the thermochromism of the azobenzene functional polydiacetylenes were investigated detailedly.

本论文通过改变间隔基长度和偶氮苯环取代基以及连接方式的方法，将光响应性偶氮生色团引入聚二乙炔。

The result shows this kind of organic azobenzene has its potential application in photonic devices due to its higher x(3) value , faster response time and optical bistability.

综观本文工作，表明自制的一类偶氮苯有机材料具有较高的／）值、快速的时间响应和光学双稳特性。说明该材料在光子器件方面具有潜在应用前景。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。