在上文中

In this paper, an algorithm based on heuristic function for minimum set covering problem is presented, as well as the definition of complete strategy concept and the method to structure heuristic function.

本文给出了求解NP困难问题的完备策略的概念，在此基础上提出了一个求解集合覆盖问题的启发函数算法SCHF（set－coveringheuristicfunction），文中对该算法的合理性、时间复杂性以及解的精度进行了分析，本文的主要创新点是用已知的完备策略建立启发函数，并用该启发函数进行空间搜索求出优化解。

Three methods of image enhancement based on wavelet transform and their respective principles are presented and analyzed comprehensively. Using these three methods to enhance a radiographic NDP image respectively, we can see the differences of them by comparing the results.

文中介绍了3 种基于小波变换的射线图像增强方法及其原理，分别应用这3 种增强方法对一幅射线无损检测的图像进行了增强处理，对实验结果数据进行对比分析，说明它们在图像增强效果上的差异。

The hard core of this article is the comparison between the Chinese and foreign developmental financial institutions' operating mechanism through nine aspects separately, such as developmental course, the business mechanism, the risk control, organizational system and external circumstance, and proposed the general character of the operational mechanism of the Chinese and foreign developmental financial institutions is: the promotion of national economic development and the upgrading of the industrial structure; the trend of integrated business models and commercial institutions is gradually obvious, and still undertaking some policy-type business ;the business developed diversely, maintaining a reasonable level of profitability; active financial innovation; established an effective risk prevention mechanism.

文中的核心部分是对中外开发性金融机构运行机制的比较，分别从发展历程、经营机制、风险控制机制、外部环境和组织制度等五个方面进行比较分析，提出中外开发性金融机构在运行机制上具有的共性在于：促进本国经济的发展和产业结构的升级；综合型经营模式和机构商业化趋势渐浓，且仍兼营一些政策性业务；业务向多元化发展，保持合理的盈利水平；积极进行金融创新；建立了有效的风险防范机制。

Properties of bi quadratic B spline surface are investigated by the subdivision approach, and the control mesh of bi quadratic B spline surface is constructed by employing Doo Sabin subdivision to derive the parametric representation of interpolation surface.

文中利用子分曲面理论研究双二次 B样条曲面的性质，在此基础上利用 Doo- Sabin子分模式构造插值顶点位置和法向的双二次 B样条曲面控制网格，得到插值曲面的参数表示。

The applications of chromosome numbers and basic numbers in pteridophyte systematics are reviewed in detail. The significance of karyotype analysis, polyploidy, pogamy, and reticulate evolution in pteridophytic classification, evolution, and phytogeography is also reviewed.

文中论述了蕨类植物染色体数目和染色体基数在系统学上的应用以及蕨类植物染色体组型分析、多倍化、无融合生殖、多倍体复合体及网状进化的研究概况。

The proposed control strategy can predict the system variables one beat advanced and solve the delay problem of digital control primely, which greatly improves the dynamic performance and stability of system.

在电流源逆变器系统离散状态空间方程的基础上，利用状态反馈极点配置理论，文中详细给出了状态预测观测器系数矩阵的设计过程。

These days with there being the gap in the precision and the capability of numerical control machine between our country with international advance level, this paper puts forward the projet of multiple axes rotary spindle head structure on the foundation of setting up direct drive technology, in order to satisfy needs of exceed high speed cutting and exceed precision machining.

目前国产数控机床精度、性能与国际先进水平还存在一定差距，文中在建立了直接驱动技术概念的基础上，介绍了万能自动镗铣头结构方案，以满足超高速切削、超精密加工等先进制造技术的需要。

I explained in this part the connotation and extension of the concept of public administrator specially defined in this thesis, analyzing the different roles it plays in different theories, and then offered an elaboration of the connotation and the dual dimensions of administrative ethics.

说明了文中所指的公共行政人员的内涵和外延，分析了不同理论视角中公共行政人员角色的差异，并在此基础上对行政伦理的涵义和双重向度进行了阐释。

Based on the introduction of the working principles and characteristics of the material blending and pulverization system in the raw material workshop in cement plants, the schematic layout of the control system is proposed.

文中首先介绍了水泥厂生料车间配料及粉磨系统的工作原理和工作特点，在此基础上提出了水泥厂微机配料与负荷控制系统的设计方案。

In this paper,the algorithm of a kind of hierarchical competitive covering networks for the classification problems is proposed based on the introduction of quotient space theory,which defines granularity according to Huffman coding and Huffman coding algorithm.

文中在此基础上，利用商空间的粒度原理和霍夫曼编码的思想，对样本分布极其不均匀的分类问题，构造分层竞争覆盖网络。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。