实用软件

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.

它将为制定水资源的可持续发展目标和战略决策提供科学依据，为制定社会、经济可持续发展战略提供理论基础。基于以上考虑，论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨：①全面回顾了&可持续发展&概念的由来与演变，对国内外&可持续发展&的研究现状进行了述评，并对&可持续发展&概念的科学内涵进行了深入探讨；②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述，对目前仍然存在的一些错误观点和混乱认识提出了自己的见解；③全面阐述了地下水资源变值系统理论的内容和意义，并与传统的地下水资源计算评价方法进行了对比分析，结合实例具体说明了方法的应用；④深入分析了地下水资源预测预报工作的极端重要性和复杂性，对传统的地下水资源动态预测方法进行了全面的评述，指出了各类预测预报方法的特点及适用条件，对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围，以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍，并应用于地下水动态过程线的分析，采用时间序列中的B-J法，蒙特卡罗方法，与地下水资源变值系统理论相结合，探讨了地下水动态资料分析和地下水资源预测预报的新思路；⑤综合分析了现今各类地下水管理模型的特点及缺陷，将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度，使模型更准确、更实用；⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析，内部条件主要是正确的资源观，科学的资源计算与评价方法，可靠的资源预测预报技术，可操作的资源管理措施，外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等；⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发；⑧指出了地下水资源可持续开发的进一步研究方向。

A practical software development method based on monolithic microcomputer is presented in this paper, It suggests a new data transmission path way between IBM-PC microcomputer and JD-51 monolithic microcomputer by use of CENTRONICS printer parallel port of IBM-PC system and the printer interface of JD-51, It transmits the MCS-51 system machine code program assembled and edited in IBM-PC to JD-51 monolithic computer or transmission backword.

本文介绍了一种实用的单片双板机软件开发方法，该方法利用IBM—PC的CENTRONICS打印机并行口与JD—51单片双板机的打印机接口进行数据传输，把在IBM—PC机编辑汇编成的JD—51双板机的机器码程序传送给JD—51，阐述了该方法的技术原理及程序设计。

This text expatiated the control of the system requests, analyzing the work principle of the system with work process, gave each parts of hardwares design process and its related electric circuits, software design process, control the calculate way realizes flow chart, emphasized to explain the calculate way of PID in the single a work for on boardly realizing method, at the same time expatiating system characteristics, experiment proof this is a kind of economic practical forerunner control technique.

本文阐述了系统的控制要求，分析了系统的工作原理和工作过程，给出了各部分硬件设计过程及其相关电路，软件设计过程，控制算法实现流程图，着重说明了PID算法在单片机上的实现方法，同时阐述了系统的工作特点，实验证明这是一种经济实用的先进控制技术。

From the point of view of the framework, there is some language independency in CLAT, and it can not only adapt to different OO language, but also tell us that the feasibility and value of method of Concept Lattice.

从结构体系的角度看，该系统不仅具有一定的语言透明性，可以适用于不同的面向对象语言，而且证明了概念分析方法在遗产软件再工程中的可行性和实用价值。

That application of Surfer in drawing of isohyetal line chart only costs 5 minutes has shown that it has virtues of quick speed and good effects, which have realistic meaning for hydrology, flood prevention management.

在此应用中绘制雨量等值线图仅花费5 min时间，说明使用Surfer软件绘制雨量等值线图具有速度快、效果好等特点，对水文、防汛管理工作有着实用的现实意义。

That application of Surfer in drawingof isohyetal line chart only costs 5 minutes has shown that it hasvirtues of quick speed and good effects, which have realisticmeaning for hydrology, flood prevention management.

在此应用中绘制雨量等值线图仅花费5min时间，说明使用Surfer软件绘制雨量等值线图具有速度快、效果好等特点，对水文、防汛管理工作有着实用的现实意义。

This design is mainly on the function of consumers logging in, system design, signing management, signing statistic, laborage management and so on. It lacks the braveness of pursuing the special and commercial software, but offers the convenient operation for consumers' requirements. It is very easy to be mastered and be used.

该设计主要具有用户登录、系统设计、签到管理、签到统计、工资管理、等功能，没有可以追求专业性和商品化软件的华丽包装，而是本着简单实用的原则，既在功能上满足用户需求，又力求操作简便，使本系统容易掌握和使用。

Through large amount of knowledge acquisition from actual engineering, expert systems for welding procedure planning and precalculation of welded joint properties have been successfully developed in several types of knowledge indication methods such as production rules and processes.

因此，本文研究的主要目的就是探索应用电子计算机技术改造传统产业的理论模式和方法，研制出实用的焊接工程应用软件，改变锅炉及压力容器制造业目前编制工艺流程手工准备的落后状态。

In the competition, item department received a large number of softwares that are original, applied and high—qualitied.

在本次竞赛中，项目部收到了一大批功能新颖实用，创新性强，设计水平高的软件。

Software Description: About Message Parse, An email processing utility, that provides an easy, and effective way to transfer data from email toother applications.

Message Parse 这是一款提供了一种简单且高效的用于从电子邮件传输数据到其它应用软件方式的电子邮件处理实用工具。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。