计算机操作

But now databases are commonly recorded on magnetizable media,and computer programs are required to perform the necessary storage and retrieval operations.

而现在，数据库普遍记录在可磁化的介质上，并且需要用计算机程序来执行必需的存储和检索操作。

But now databases are commonly recorded on magnetizable media, and computer programs are required to perform the necessary storage and retrieval operations.

但是，现在数据库很普遍的被记录在磁化媒介上，而且计算机应用程序利用它执行必要的存储和检索操作。

But now databases ate commonly recorded on magnetizable media, and computer programs are required to perform the necessary storage and retrieval operations.

但数据库现在吃了共同地记录在可磁化的媒介，并且计算机程序必需进行必要的存贮和检索操作。

Now databases are commonly recorded on magnetizable media, and But and computer programs are required to perform the necessary storage and retrieval operations.

而现在，数据库普遍记录在可磁化的介质上，并且需要用计算机程序来执行必需的存储和检索操作。

My main characteristic are: good command in office sofeware, to be able to use Frontpage. I am versed in computer net, especially for electronic deal and background manage because they are my major.

我的主要特点是：办公软件操作相当熟练，还会网页制作，由于我的专业，我对计算机网络的了解也很深，尤其是电子交易，后台管理。

Of PC and SCADA to be made of the friendly Man and Machine Interface, and it facilitates the operation of the system. The hypogynous of the system adopts Siemens S7 400H PLC to collect data and to control the process of the dosing control system.

上位机用工业计算机和组态软件构成友好的人机界面，方便了系统的操作；下位机采用西门子S7 400H PLC进行数据采集和化学加药控制。

The results of Manual operation and teMperature control were also coMpared and analyzed in detail.

并对手动操作与计算机控制的结果作了分析和比较。

The paper presents a method to realize the production planning system based on the Material Requirements Planning MRP arithmetic. It develops the system resolving and balancing the capacity on the platform of VC++. The data management is based on the VFP. With the help of rapid material resolving, the visual technology of capability balancing and the powerful database function, it realizes the seamless integration of the modules of MIS and CADCAPP.

提出了一种以物料需求计划MRP算法为基础的生产计划系统的实现方法，算法的求解与能力的平衡在VC++平台上完成系统基础数据的管理、操作界面的集成基于VFP平台物料快速分解、能力平衡可视化技术与VFP强大灵活的数据库功能相结合，实现了管理信息系统MIS各模块的信息集成以及MIS与计算机辅助设计与工艺CADCAPP的无缝集成

PLC (Programmable Logical Controller) took one kind most important, the application situation most industries control microcomputer, it is convenient, operation simple in particular by its programming meri and so on redundant reliability, obtained the widespread application in the industrial productinprocess.

PLC作为一种工业控制微型计算机，它以其编程方便、操作简单尤其是它的高可靠性等优点，在工业生产过程中得到了广泛的应用。

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。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。