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In line with the strategic goal of the nation's modernization drive and proceeding from national conditions, the Chinese Government has formulated and implemented a population policy which conforms to China's reality and has greatly contributed to the stabilization of the national and the world population and to the promotion of human development and progress.

结合中国现代化建设目标和国情，中国政府制定并推行了一项人口政策，它与中国实际相结合，对中国乃至世界人口的稳定做出了重大贡献，有利于人类的发展和进步。

Now most oil fields have been high water-cut, so studing fluvial sandbody architecture can provide important academic evidence to realize the distribution of remained oil and hold peak or settled production, fn addition to ,how to combine the facts of macroscopical and microcosmic, and how to combine the result of well network and fields outcrop.then instruct production and practice, which is the stress of this article.

在目前大多数主力油田已进入高含水期的形势下，研究河道砂内部建筑结构，可以为了解剩余油分布规律，保持油田高产稳产，提供重要的理论依据。此外，如何将宏观与微观的因素结合起来，将密井网研究成果及野外露头研究成果有机的结合起来，用于指导油田生产实践，也是本次研究的重点之一。

This paper researches the technique of mobile orientation and the GPSOne technique based on CDMA, based on it linking the technique and application,the paper puts forward location based service flat roof in order to falling the application developing doorsill.This paper gives the design patterm.And combining the patterms of application validates the validaty of location based service system.

本论文深入学习了无线定位的技术理论及体系结构，掌握了基于CDMA网络的无线定位技术GPSOne，在此基础上，将其与业务相结合，提出了位置服务本地接入子系统平台，并给出其设计的模型结构，解决了降低业务接入门砍的技术问题，并结合开展业务模式的分析验证了位置服务本地接入子系统的有效性。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

According to working characteristics of a surface driving screw pump system,torsion load and axial force of sucker rod string which is analyzed and calculated in this article.

结合螺杆泵抽油系统的工作特点，对抽油杆柱的扭转载荷与轴向载荷进行了分析和计算，结合第四强度理论，对杆柱强度条件进行了分析。

So it is helpful to enhance students' aesthetic judgment, mould their sentiment, form proper aesthetic sense and lofty aesthetic sentiment, create beauty according to the regular pattern of perfection if take fully advantage of superiority and trait which prose contains, combine proper teaching means, create joyful ambience, introduce message relevant to the background, set an example when reading aloud, stimulate students' concern and interest with prose, enable them develop their imagination and association, combine one self's experience, emerge emotion resonance with author, thus form unique reading ways of one's own..

因此充分利用散文所具备的优势和特点，结合适当的教学方法，创造愉悦的氛围，介绍相关背景知识，进行示范朗读，激发中学生对散文的关注和兴趣，使学生能够充分展开自己的想象和联想，结合自己的情感与体验和作者产生情感共鸣，从而形成自己独有的解读方式，这对于提高中学生的审美能力，陶冶学生的情操，形成正确的审美观和高尚的审美情趣，按照美的规律创造美有不可忽视的作用。

The particle size distributions in Beijing collected in a normal weather period, a dust storm arrived from remote area and the local dust storm arising were measured by PIXE combined with a multi-stage sampler, and the change of the concentration of particulates with time was obtained by PIXE combined with a auto-step time sequence sampler.

用PIXE分析技术结合分级采样器测量了正常天气、远处沙尘暴到达时和局地扬尘起来时北京的大气颗粒物粒径分布谱，与时间序列自动采样器相结合，得到了大气颗粒物浓度随时间的变化，通过受体模型计算得到大气颗粒物来源及其贡献率。

Identify music education and social function of the relationship between the functional and integration features, elaborate, and further integration of social teaching practice outreach.

找出音乐的教育功能与社会功能的关系和结合特点，进行阐述，并进一步结合社会教学实践方面进行拓展。

Using a new method of plasma spraying,ZrO2 thermal barrier coating was formed in the course of plasma spraying.

热障涂层技术在航空航天、能源、冶金等领域有着广泛应用[1]。热障涂层的结合强度是指涂层与基体之间的结合强度，是优化工艺参数的重要依据之一。

They are the result of two sperm cells fertilising a single egg, which then divided to form two embryos - and each sperm contributed genes to each child.

他们是两个精子细胞与一个卵子结合的结果，结合后的卵子分裂形成了2个胚胎——各自精子对各自幼儿提供基因。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。