基本特点

It is provided with a reinforcing ring for the connection of the hemispherical head and the cylinder and is safe in use, reasonable in structure, convenient in fabrication, and low in cost.

介绍了这种容器的基本结构及特点，并以加强箍及其附近的半球形封头和筒体为研究对象，利用有限元计算和应力实测结果对其受力特点作了深入分析，提出了工程设计方法，对比分析了其应力集中系数、质量和制造难易程度。

The article is composed of four parts. The first part is the theory analysis of the inheritance tax, including to the concept of the estate tax, basic theoretical school and their special features.

全文共分为四个部分，第一个部分主要对遗产税的理论进行分析，包括：遗产税的基本概念、基本理论流派和其性质与特点等。

The results showed that this method was intuitional, scientific and impersonal, and could avoid disadvantage of subjectivity which existed in traditional basic farmland distribution.

结果表明，用这种方法进行基本农田指标分解具有直观、科学和客观的特点，克服了以往基本农田指标分解中主观性较强的缺点。

According to analyses of the existing problems in the evaluation of agent of government investment project ,combining with the characters of the substituted construction system of the government invested project and the project management,a performance evaluation index system of the agent of government invested project was constructed,fdlowing the basic principles of the index settlement.

通过对当前政府投资项目代建单位绩效考评存在问题的分析，结合政府投资项目代建制特点及项目管理特点，遵循指标设置的基本原则，构建了政府投资项目代建单位绩效考评指标体系，引入层次分析法、模糊综合评价法以及数据包络法相结合的AFD综合评价模型，并列举了应用算例。

Chapter three (the methods of generating chaotic signal and its applications): In this chapter firstly the mechanism that a simple kinetic system, subsection linear map system, can generate chaotic phenomena is affirmed, the characteristics of correlation function of the chaotic signal generated by this system are simulated, on this basis a simple applicable method for generating chaotic signal is given; secondly some typical circuits generating chaotic signal are designed, also use operational amplifier to design a third -order autonomous circuit with chaotic dynamics. The basic mechanism and typical structures of chaos in the application of communication are introduced systematically and a simple method is provided for generating pseudo random code signal; At last Chaotic signal is applied into the analysis of system characteristic.

第三章(混沌信号产生方法及其应用)首先针对一类简单动力学系统——分段线性映射系统能够产生混沌现象的机理及由该系统所产生的混沌信号的自协方差函数特点进行了证明和计算机仿真，提出了软件产生混沌信号的一种实用方法；其次分析讨论了几种能够产生混沌信号的典型混沌电路，提出了用运算放大器与阻容元件实现三阶自治混沌电路的基本原理；概述了混沌在通信领域中应用的基本原理和典型结构，提出了产生伪随机码信号的一种简单方法；最后将混沌信号用于系统的特性分析中。

And think it the basic idea of "the supremacy of law" and "people foremost" that criminal investigation system reform in China. It also involves the principles of investigation system reformation in china: the principle of phase-in, the principle of system, the principle of localization, the principle of planning as whole principle, the principle of following criminal investigation rule and its characteristic principle, the principle of being proceeded to enhance the overall potency of police related to criminality.

认为"法律至上"和"以人为本"是我国刑侦体制改革的基本理念：其次，论述了我国刑侦体制改革的基本原则，包括渐进性原则、系统性原则、本土化原则、统筹协调原则、遵循刑事侦查工作的规律和特点原则、有利于提高刑警队伍的整体素质和整体效能原则。

The article clarified above all economic progress and the common meaning that science and technology progresses, pointed out science and technology regards the first productivity as the profound influence to contemporary socioeconomy; Next, to science and technology progress and the main concern that economy grows made a specification, the main at 4 o'clock effect that discussed science and technology to progress to develop to economy and 10 characteristics that stimulative economy grows; Discussed adequately how to use science and technology to progress to develop the dynamic question with bigger infuse for economy better.

文章首先阐明了经济发展与科技进步的一般含义，指出了科技作为第一生产力对当代社会经济的深刻影响；其次，对科技进步与经济发展的基本关系作了说明，论述了科技进步对经济发展的四点基本作用和促进经济发展的十个特点；充分讨论了如何更好地利用科技进步为经济发展注入更大的动力的问题。

The modified method can satisfy the limit of mean square deviation within 10W/m^2, and the average relative error is about 25%.

计算结果与西沙实测资料、长年代的GSSTF2资料和NCEP/NCAR再分析资料进行比较验证，证明改进后的方法精度较高，基本可以保证湍流热通量的平均标准偏差在10W/平方公尺左右，与多年的月平均做比较，相对偏差为25%左右；同时，不仅首次将计算热通量的空间尺度精确到0.1°×0.1°，而且基本模拟出了南海季风暴发期间热通量变化的主要特点以及中国近海热通量随季节、纬度和海岸地形的变化特征。

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。

Secondly, the basic principle project was successfully designed by summing up the experience of the former, considering fully the form and structure of the oilcan, basing on the basic reason of low cost, steady and credibility, discussing time after time and comparing again and again.

其次，总结前人的经验，充分考虑油罐形体的特点，结合低成本、平稳可靠的基本思路经过多次讨论、反复比较成功地设计出本系统的基本原理方案。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。