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Based on the method that a rectangular function can be expanded into a sum of complex Gaussian functions with finite numbers, the propagation characteristics of a Gaussian beam passing through apertured spatial filter systems are analysed and the corresponding analytical formulae are obtained respectively.

根据矩形函数可以展开为有限复高斯函数之和的方法，从柯林斯衍射积分公式出发，对高斯光束通过受限空间滤波器传输特性进行分析，得到了相应的近似解析式。利用Matlab对其解析式进行数值模拟，得出一组直观的结果。

The expansion coefficients Of aperture fields are Obtained after the three-dimensional arbitrary aperture fields have been represented by the sum of three-dimensional Gaussian function in the configuration-spatial wavenumber phase space.

本文利用Gabor原理把三维任意口面场表示成离散结构－波数相位空间中三维高斯基函数的叠加，将二维高斯基函数与相位空间谱双重正交的函数推广到三维，从而得到口面场展开函数。

What can be inferred immediately from this revolutionary perspective on the "impression-word" relationship is that: the indexical words such as "I","now " and "this" are not the indications of the characters of the phenomena themselves so that it is totally misleading to talk about the genitive case or the temporal-spatial form of the unspeakable data.

从维氏的这一论断中我们不难引申出：像"我"、"现在"、"这"这样的索引词并非是对于予料自身特征的提示，同时，去谈论现象的时-空形式与人格所有形式亦是误人子弟的。

The application of geo spatial information net model used in grid based GIS is also discussed.

结合应用案例，分析了网状服务模式在网格GIS中的应用。

The influence of solid tide on station displacements is an important part of the spatial geodesy and astrogeodynamics research.

固体潮对测站位移的影响是空间大地测量和天文地球动力学研究的重要组成部分。

The paper puts forward the regionalization principle according to the structural feature of geographical spatial environment.

本文根据地理空间环境的结构特征提出了分区的原则，在分析研究内容的主要影响因子的基础上，利用多种数据源，在分区指标的支持下进行空间叠置分析，建立采样均质区，形成样点布设支持的空间背景数据库；同时，本文利用组件式地理信息系统的二次开发能力，设计了多种针对采样均质区自动样点布设的方法，样点布设的结果是形成一个点状空间图层；针对如何定位预先设计的采样点问题，本文又提出了采样导航的概念，它是通过GPS和GIS集成实现的，定位信息经过投影转换，实时显示在采样点空间图层上，参照道路、居民点等背景图层进行采样点定位，并根据空间搜索实时寻找最近采样点，当到达采样点时予以提醒，并进行相关的采样。

Spatial analysis procedures are completed basic geometric figure drawing, and completed gis Lane buffer analy...

空间分析程序完成基本几何图形的绘制，并且完成gis里缓冲区分析，部分完成了多边形之间关系的功能！

The signal-phase-matching principle of three and multi sensors are proposed in this dissertation. By using these principles, the formulae of estimated spatial signal are derived. The physical meaning and the geometric interpretation of these principles are given. The performances of estimated signal are analyzed when the phase of expected signal and the amplitude of noise are fluctuant.

提出了三元阵及多元阵的信号相位匹配原理，推导了利用信号相位匹配原理的空间信号估计公式，给出了信号相位匹配原理的物理意义及几何解释，分析了信号相位和噪声幅度起伏对信号估计性能的影响。

In order to explore solutions to the problem, so the sample students learn to socialist modernization, and further Xuexi Suobi Xu of algebraic, geometric probability and basic knowledge and a rudimentary micro-integration, and forms the basic skills; further developing of thought Nengli , computing power, spatial imagination, the ability to solve practical problems and sense of innovation, from last year, to understand the science ...

为了探索解决问题的办法，使学生在高中阶段学好从事社会主义现代化建设和进一步学习所必需的代数、几何基础知识以及概率统计和微积分的初步知识，并形成基本技能；进一步培养学生的思维能力、运算能力、空间想象能力、解决实际问题的能力和创新意识，从去年起，为了解学。。。本文共有6999字

Rule-based and reusebased method is adapted in our system to develop applications. Rules are used to define geometric representation of geographic objects, spatial relationships among geographic objects and map design rules. Reusability is realized through object's inheritance and encapsulation. The basic function related to GIS has been implemented in OOGDB's basic class base. Application related function can be implemented in sub-classes of basic classes and some of basic class' function can even be overloaded.

GIS应用系统的开发采用基于规则和基于重用的方法进行，规则用于定义地理对象的几何表示和空间关系以及地图构造的规则等，重用是通过面向对象的继承和封装机制实现的，GIS实现了一个基本的类库，它完成基本的空间处理和操作，用户通过定义这些类的子类重用类库提供的功能，并增加与应用系统有关的特殊功能，用户甚至可以通过重载修改某些类库的功能。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。