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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。

Back at business school, Michaelmas term culminated in a consulting project for a Cambridge-based new venture, providing an opportunity to put our new-found business skills into practice.

回到商学院，一个咨询项目为米迦勒学期画上了句号，在项目中，学员要为一家剑桥的新公司提供咨询服务，这为我们新学到的商业技能提供了一个实战机会。

I can handle the scars you put on my back, but what you did to Michelle...

我可以不管你在我后背留下的伤，但是你对 Michelle 所做的。。。

While Mid-American put only $1 billion into Constellation in September, it will get back $2.1 billion now.

中美能源9月份仅向联合能源投入10亿美元，现在可以收回21亿美元。

EdF's win may not be the best outcome for Buffett as a buyer, but for Buffett-as-investor it is none too shabby a return. In only three months, Buffett has more than doubled his money. While Mid-American put only $1 billion into Constellation in September, it will get back $2.1 billion now.

来看一下这21亿美元的构成：根据9月份的交易条款中美能源将获得高额退出补偿包括6亿美元现金和联合能源9.9%的股份(价值5.3亿美元)；此外联合能源还将向中美能源支付年收益率为14%、2010年底到期的10亿美元票据

I gave Michael books and pictures to prepare Minny every evening, and to put her back in the stable: you mustn't scold him either, mind. I was at the

我给麦寇尔一些书和画，叫他每天晚上把敏妮准备好，等用过后把它牵回马厩里：记住，你也千万别骂他。

Go on quick increase easy make we to accelerate change economy increase style de urgency have relax, meanwhile give back can to society give off misinform, furthur suggestion producing energy's overage expansion, cover our country's machine's industry gong guo yu qiu de's contradiction, put off explosive time, exacerbate future contradiction.

持续快速的增长容易使我们对加快转变经济增长方式的紧迫性有所放松，同时还会向社会发出错误信息，进一步诱发产能过度扩张，掩盖我国机械工业供过于求的矛盾，推迟爆发的时间，加剧未来的矛盾。

Now, to the horror of those trying to put Mogadishu back together again, the north is beginning to crack too.

现在，让那些试图使摩加迪沙回复往日荣光的人感到恐怖的是，北方也正在开始动荡分裂。

Now I have put the money all back in your money-box all six thousand.

现在，我已经把所有的6千元千都放到了你的钱箱中。

Sitting motionlessly for a long time will put on more pressure on the joint of the back and legs, even causes the blood clot.

长时间地坐着不动会加重背部及腿关节地压力，甚至会促成血凝块的产生。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！