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For the first task, unnecessary holes inside of the model should be avoided, and non-interest front regions should be excluded. For the second one, three fundamental problems of reconstruction: the correspondence problem, branching problem, and tiling problem should be handled properly.

前者主要考虑如何避免提取模型内部不必要的空洞、和快速去除非兴趣区域的骨质影响；后者主要考虑如何解决表面重建中的轮廓对应和分支问题、以及如何提高轮廓拼接的准确性与效率。

The two stage method by-passes the correspondence problem and ill-posed problem encountered in the general motion analysis, and avoids the local minimum problem of the spatial-constrain-based iteration method.

本文推广了全景图象方法和外极面图象方法，从而使之能适用于具有抖动的图象序列分析，并避免了一般运动视觉方法的不适定问题和特征对应问题、基于空域约束的迭代方法的局部最小化等问题。

The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme

主要的环境地质问题是：活动性断裂、地震带的地壳不稳定；崩塌、滑坡、泥石流及水土流失；地下岩溶塌陷、渗漏问题；基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害；盆地软土问题；软弱岩体、碎裂、风化岩体稳定性较差；高寒地带公路、铁路建设的冻土冻融灾害问题；煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题；工程切坡、施工弃土及水库、湖泊生态地质环境保护问题；航道险滩、暗礁问题；渠化工程、码头等库岸再造问题；以及机场建设中的不稳定地基及地下水腐蚀性问题；同时，随着大通道建设的实施和完成，城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合，都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果，滇西北、滇西南地区交通密度较低，交通工程对环境的影响程度较弱，是环境地质状况好的区域；有主要高原湖泊分布区的，包括昆明、个旧、文山的滇东南区域，环境地质状况较好；大姚、楚雄、篙明及会泽、昭通一镇雄的区域，即滇中北部中生界红层和滇东北岩溶区，环境地质状况中等；而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区，环境地质状况较差。云南国际大通道建设涉及全省区域，如何利用地质环境、实现可持续发展，就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面，提出了对策措施。最后，提出了建立国际大通道建设与环境地质良性关系的宏观建议。

Or three deer inner parts go into a factory factory an examination a personnel to collaborate with supplier, add with the protein content low raw material three chlorine cyanotype the An get by under false pretenses combine factory, in fine must find out to arise problem of link, find out a responsibility person, this kind of matter must someone be responsible for and also only thoroughly check pure problem, punished a responsibility a person, then can be real to let three deers start to re- set up the image of race brand in the consumer in front, otherwise no one's good-bye believe this brand, can imagine, if three deer company oneself not and actively resolve a problem, the affairs will become it this time of business enterprise judgment day, have to understand, the consumer is God, 1 connect consumer life safety and healthily can arbitrarily neglect of business enterprise, end it will pay the most heavy price of for this.

还是三鹿内部的入厂出厂检验人员与供应商勾结，用蛋白质含量低的原料添加三氯氰胺蒙骗过关并出厂，总之一定要找到发生问题的环节，找出责任人，这种事一定要有人负责，也只有彻底的查清了问题，处罚了责任人，才能真正让三鹿在消费者面前重新树立起民族品牌的形象，否则没有人再会相信这个品牌，可以想象，如果三鹿公司不自己主动解决问题，这次事件将成为它的企业末日，必须明白，消费者才是上帝，一个连消费者生命安全和健康都可以任意忽视的企业，最终它将会为此付出最沉重的代价。

Set cover greedy algorithm is one of the commonly used algorithms for the test set problem. It is an open problem if the approximation ratio 2ln n+1 directly derived from the set cover problem can be improved.

集合覆盖贪心算法是测试集问题的一个常用近似算法，其由集合覆盖问题得到的近似比21nn+1能否改进是一个公开的问题。

Concept of the feasible process graph for a part was defined and the mathematic model of multi-process routes decision-making problem was set up. Thus, the problem of multi-process routes decision-making was transformed into the problem of searching optimum path in this directed graph.

给出了零件可行性工艺路线图的概念，建立了多工艺路线决策问题的数学模型，从而将零件的工艺路线规划问题转化为对零件可行性工艺路线图中具备最优值的路径搜索和寻优问题。

When solving the TNA problem based on fleet balance application, a flight pairing network model is build, by which the primary problem transferred to a directed path decomposition problem to minimize target function, and a simulated annealing algorithm is constructed.

在解决使飞机均衡使用的飞机排班问题时，本文利用航班节的网络模型将原问题转化为一个使目标函数最小的航班节编组问题，在此基础上构造了一个模拟退火算法。

In this dissertation, the author discusses the numerical solution for the direct acoustic scattering problem with the Neumann boundary condition, and pays more attentions to discuss numerical recovering the shape of the obstacle region, which is the inverse problem of the direct acoustic scattering problem with the Dirichlet or impedance boundary condition.

本文重点研究了Neumann边界条价下的声波障碍散射正问题和Dirichlet、Impedance边界条件下的声波障碍散射区域反问题的数值计算方法，得到很好的理论结果和数值结果。

In this paper,regularization method is introduced. The author pays more attentions to investigate the numerical solution for the direct acoustic scattering problem with the Dirichlet boundary condition, and the numerical recovering the shape of the obstacle region which is the inverse problem of the direct acoustic scattering problem with the Dirichlet boundary condition.

本文主要引入正则化方法，研究了针对Dirichlet边界条件的声波障碍正散射问题和声波障碍散射反问题的数值计算方法，并得到了很好的数值结果。

This problem is defined as: Given points X, Y on the elliptic curve, find z such that: X = zY The discrete logarithm problem over this group in a finite field is a good one way function because there are currently no known polynomial time attacks forsolving the problem.

这个问题是指：鉴于点X和Y的椭圆曲线，找到这样： X =模糊离散对数问题，这个集团在有限的领域是一个很好的方法之一的功能，因为目前没有任何已知的攻击forsolving多项式时间的问题。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。