章动

In the fourth chapter,we study theperturbation to the symmetries and adiabatic invariants of Birkhoff system.

第四章研究了Birkhoff系统的对称性摄动与绝热不变量。

Chapter 4 presents five design criteria of S-boxes of block ciphers, develops a method of constructing large S-box by use of algebraic group operation, proves the balance property of these large S-box, tests the strict avalanche and independence of avalanche variables properties of S-boxes in NEA cipher, analyses the nonlinearity and best linear approximation of the S-box, and finally defines the differential of input/output of S-boxes of this cipher and analyses the distribution of them.

第二部分即第三章，提出了一种新的分组密码类NEA(NEA-4A，NEA-8A，NEA-4B，NEA-8B)，完整地描述了该密码类的加解密过程和密钥协议；证明了NEA-4B和NEA-8B的完全对合性和没有不动点的性质；分析了该密码类的安全特征；具体地介绍了实现该类密码的途径；给出了NEA-4A的计算机C语言程序和样本数据。

This chapter is divided into four sections, First Section present the Qing Dynasty "Lao Zi" annotator's expectations "saints" is "Save by Tao" image of the ideal; Section II of the Qing Dynasty "Lao Zi" annotator's analysis of the concept of "Doing Nothing". The third quarter discusses the "Lao Zi" annotator in Qing Dynasty especially for the Thrust-Weight "Forgotten" in the political meaning.

本章共分为四节，第一节为「理想人格」，呈现清代《老子》注家对「圣人」的期许，他们认为圣人是大道的体用，是「以道救人」的理想形象；第二节为「无心顺物」，讨论清代《老子》注家对於「无为」概念的具体分析，他们以「循理而动」、「听其自取」、「各安其分」、「因时制宜」、「因情顺性」等观点，使「无为」的理念得以开展；第三节为「智识与相忘」，论述清代老子注家特别推重「忘」在政治意涵上的发挥，在忘境之中君民各尽其生，熙熙乐乐而浑然不觉。

In this chapter, the existence and uniqueness of the solution to the scheme, the convergence and stability to the scheme are proved by using discrete functional analysis theory, the apriority estimate method and the Brouwer fixed-point theory.

在本章中，运用离散泛函分析理论，结合先验估计、Brouwer不动点原理证明了相应差分格式解的存在唯一性、收敛性和稳定性。

Moreover, existence of analytic solutions for a linear iterative equation with variable coefficients is given by reducing to an auxiliary equation and using Schauder's fixed point theorem.

此外，本章还使用Schauder不动点定理，通过建立辅助方程，研究了变系数的线性型迭代方程解析解的存在性。

Moreover, existence of analytic solutions for a linear iterative equation with variable coefficients is given by reducing to an auxiliary equation and using Schauders fixed point theorem.

此外，、本章还使用Sehauder不动点定理，通过建立辅助方程，研究了变系数的线性型迭代方程解析解的存在性。

In chapter 5,we introduce the De Morgan algebra of metric and investigate the pseudo-metric Uniformity and the pseudo-metric topology and the separation axioms in De Morganalgebra of metric.We establish the Baire category theorem and the Banach contraction theo-rem,the Edelstein contraction theorem and other fixed quasi-atom theorems in De Morganalgebra of metric.In final,we give a sufficient condition for the metrization of a De Morganalgebra of topology.

在第五章里，我们地德摩根代数中引进了伪度量，探讨了伪度量一致和伪度量拓扑以及德摩根度量代数的分离公理，得到了Baire范畴定理、Banach收缩定理、Edelstein收缩定理以及其它不动拟原子定理，最后给出一个德摩根拓扑代数可度量化的充分条件。

In chapter 2, the base knowledge of satellite is introduced. In chapter 3, GPS satellite ephemerides are discussed briefly.

第二、三章概括了卫星运动的基础知识及轨道摄动分析解，指出了分析解存在的不足。

In additional, we connect with semiorder to get a series existence theorems of multiple fixed points about quasimonotone increasing operator.

此外，我们还与半序结合，得到了一系列拟单调增算子的多个不动点的存在定理。这一章与第一章的联系比较密切。

In chapter 3, as a application of fixed point theorems in gauge spaces, by using the results in chapter 2 we study the existence and uniqueness of solution for integral equation of Voletrra type in C.

第三章，作为度规空间中的不动点定理的应用，我们利用第二章中的结果，在C空间中研究了Voletrra型积分方程解的存在性与唯一性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。