演变

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。

From 1978 to 2008, music changes in every way, folk,country, rock'n'roll, metal, jazz, new age etc. evolved in all kinds.

X* ~从1978年到2008年，音乐以各种方式演变，民谣，乡村，摇滚，金属，爵士，新世纪音乐等等。

The simple theme of the artist rising in the morning and walking around his apartment is rendered in such a way as to make us question our own perceptions as the scenes metamorphose into a series of revolving, virtual cubes.

艺术家简洁的表达了他清晨起床后，在房间四处走动的画面，这种意识形态的演变融入在一系列的旋转的虚拟方形之中，这让我们在探询自己的内在感受的同时，也对艺术作品产生了及大的好奇。

Instead of coming to a conclusion,what emerges after a series of metamorphoses is an open dialogue for interpretation and imagination of the exhibited works.

当物质穿越不同状态产生形变及质变，眼前表象不再是一连串演变的终结，虽处於演化中的状态，却形成一个更开放的场域供阅读及想像。

Simultaneously took the flower-and-bird painting from finely wrought to the enjoyable style transitional stage, regarding the flower-and-bird painting style development and the picture wind evolution, the Yuan Dynasty water ink flower-and-bird painting in methodicalness, the drawing techniq...

作为花鸟画由工致到写意的风格过渡阶段，对于花鸟画风格与品格的拓展与画风演变，元代的水墨花鸟画在章法、画法、画理的继承与发展中都起到承前启后的作用。

In the first part of this article, I analyse the characteristic of the scientific methodology.

本文的第一部分阐明了教育研究方法论的演变过程，分析了20世纪70年代之前教育研究方法论的特点。

They are transferred from the primary meaning by devices of metaphor and metonymy.

辐射和连锁是多义词词义演变的两种主要形式。

Meanwhile, the evolvement process of microorganism species was observed.

同时，观察了油的冲击下微生物相的演变过程。

The spatial and temporal evolution of simulated velocity and cloud microphysics fields show that the coupling of vertical velocity and vapor distribution is a kinematics criterion for vapor condensation and freezing that result in snow.

模拟的 运动场和云微物理量场的时空演变表明，垂直运动场与水汽场的耦合是水汽凝结和冻结成雪的运动学条件；气旋性涡柱和上升运动及深厚湿舌的耦合是暴雪形成的一种重要动力机制。

The computer simulation of microstructural evolution in hot rolling and the research of the relationship between microstructure and mechanical properties have been one of the hot topics in recent years .

热加工过程中的微观组织演变的计算机模拟以及微观组织与力学性能的研究是近年来本学科研究领域的热点之一。

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。