三部

In this paper, resource and feature of three-dimensional data model to the arch tunnel and interior installation are mainly researched; design thinking of the arch tunnel model is given out; algorithms of three-dimensional model about tunnel body and the joint part of the adjacent to tunnel body are achieved; in addition, relevance algorithms of texture mapping technology to interior in tunnel body and three-dimensional model of interior installation of tunnel are also researched.

主要研究了拱形巷道及其内部设备三维建模的数据来源和特点；给出了拱形巷道建模的设计思路；研究了实现巷道体和相邻巷道体之间连接处三维建模的算法；另外也研究了实现巷道体内部纹理贴图技术及巷道内部设备三维建模的相关算法；研究了实现三维巷道漫游的算法。

As a whole,the notable characteristic of primary productivity in size-fractioned structure was that nanoplankton occupied comparatively significant advantage in Beibu Gulf.Nanoplankton has the largest contribution to gross primary productivity,and picoplankton was the secondary contributor,while microplankton the least.The contribution of microplankton for primary productivity in the north Gulf was more than that in the other waters.Nanoplankton and picoplankton contribute more to the gross primary productivity in offshore deep waters than in inshore shallow waters3.The Beibu Gulf can be divided into three ecoregions:Region-Ⅰis the ecoregion in inshore shallow waters of the north Gulf.In average,the water depth is 18m,DIN is 1.88μmol/L,DIP is 0.20μmol/L,N:P is 9.4:1,dissolved silicate is 5.17μmol/L,the Chl a conentration in surface layer is 2.27mg·m~(-3),the assimilation index in surface layer is 3.80mg/,the primary productivity is 198.78mgC/(m~2·d), and potential fishery production is estimated to be 0.24gC/(m~2·a) according to the primary productivity.The ecoregion is mainly affected by the northern coastal water systems,and may be fit for aquaculture;Region-Ⅱis the ecoregion in offshore deep waters of the north Gulf and the coastal shallow waters to the west Hainan Island.In average,the water depth is 35m,DIN is 2.01μmol/L,DIP is 0.18μmol/L,N:P is 11.2:1,disovled silicate is 4.23μmol/L,the chlorophyll a of surface layer concentration is 1.45mg·m~(-3),the assimilation index of surface layer is 4.12 mg/,the primary productivity is 276.60mgC/(m~2·d),and the estimated potential fishery production is 0.34gC/(m~2·a) according to the primary productivity. The ecoregion was mainly influenced by ocean current from the South China Sea, rivers in the west coast of Hainan Island and the water from Qiongzhou Strait.It may be fit for aquaculture and fishery;Region-Ⅲis the ecoregion in offshore deep waters of the mid and south Gulf.In average,the water depth is 75m,DIN is 0.77μmol/L, DIP is 0.15μmol/L,N:P is 5.1:1,disovled silicate is 3.05μmol/L,the chlorophyll a of surface layer concentration is 0.70mg·m~(-3),the assimilation index of surface layer averaged is 3.69mg/,the primary productivity is 350.89mgC/(m~2·d),and the estimated potential fishery production is 0.43gC/(m~2·a) according to the primary productivity.The ecoregion was mainly affected by the circulation inside Beibu Gulf, and may be fit for fishery.

初级生产力的粒级结构的一个显著特点是总体上微型浮游生物在全调查海区均占较明显优势，对总初级生产力的平均贡献最大；微微型浮游生物对初级生产力的平均贡献次之；小型浮游生物对总初级生产力的平均贡献最小；湾北部小型浮游生物对初级生产力的平均贡献高于湾中部和湾南部，而湾中部和湾南部微型和微微型浮游生物对初级生产力的平均贡献高于湾北部，远岸深水区高于近岸浅水区。3、北部湾可以分为三个生态区：湾北部近岸浅水区，该区的环境主要特点是平均水深19m，DIN浓度平均值为1.88μmol/L，DIP浓度平均值为0.20μmol/L，N：P为9.4：1，硅酸盐浓度平均值为5.17μmol/L，表层叶绿素a平均值高达2.27 mg·m~(-3)，表层同化指数平均为3.80 mg/，初级生产力平均值198.78mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.24 gC/(m~2·a)，该区主要受湾北部沿岸水系影响，适合作为水产养殖区；湾北部深水区和海南岛西部沿岸浅水区，该区的环境主要特点是平均水深35m，DIN浓度平均值为2.01μmol/L，DIP浓度平均值为0.18μmol/L，N：P为11.2：1，硅酸盐浓度平均值为4.23μmol/L，表层叶绿素a平均值1.45 mg·m~(-3)，表层同化指数平均为4.12mg/，初级生产力平均值276.60 mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.34 gC/(m~2·a)，该区主要受南部湾口区海流向湾内延伸，沿岸海南岛河流注入湾内和琼州海峡过道水的影响，适合作为渔业作业区和水产养殖区；湾中部和南部远岸深水区，该区的环境主要特点是平均水深75m，DIN浓度平均值为0.77μmol/L，DIP浓度平均值为0.15μmol/L，N：P为5.1：1，硅酸盐浓度平均值为3.05μmol/L，表层叶绿素a平均值0.70 mg·m~(-3)，表层同化指数平均为3.69 mg/，初级生产力平均值350.89 mgC/(m~2·d)，根据初级生产力计算潜在渔业资源碳生产量平均为0.43 gC/(m~2·a)，该区主要受北部湾环流影响，适合作为渔业作业区。

The pituitary gland consisted of neurohypophysis and adenohypophysis. The adenohypophysis was divided into anterior lobe, intermediate lobe and posterior lobe.

黄颡鱼的脑垂体由垂体神经部和垂体腺部组成，垂体腺部又由前叶、间叶和后叶三部分构成。

And in the second part, we consider the following four inverse eigenproblems: the reconstruction of normal five-diagonal matrix by two or three ordered eigenvalues and cor...

第二个部分则讨论四类矩阵逆特征值问题：在考虑给定的两个或三个特征值次序的情况下构造唯一的规范五对角线矩阵：由三个给定的特征值和相应特征向量来构造唯一的实对称三对角线矩阵和不可约实对称三对角线矩阵。

Second: Comparetive study of ordinary X-ray film, CT and 3D-CT in the jaws fractures. Ordinary X-ray film, CT and 3D-CT was performed in 61 cases of jaws fractures. The diagnosis of these three imaging methods was compared with each other and with the operation findings. The result shows that the fractures in body and angle part of mandibal could be shown excellently by all these imaging methods. 3D- CT is the best method in showing the mandibular fractures. Ordinary X- ray film is poor, and the accuracy of CT and 3D-CT is similar in showing the macxillary fractures.

二。颌骨骨折的常规X线、CT和三维CT对比研究：通过对61例不同类型的上、下颌骨骨折常规X线、CT和三维CT显示情况的对比分析，同时与手术结果相对照，结果表明对下颌骨体部和角部的骨折三种影像学检查均显示准确；对下颌骨髁状突骨折的显示三维CT优于CT和常规X线；对上颌骨骨折的显示常规X线显示较差，CT和三维CT显示准确率相似。

The sample comprised 25 patients with the first premolar removed during orthodontic treatment. Digital models and lateral cephalometric records were taken pre- and post- treatment. We chose two kinds of regional superimposition methods on the digital models (One was the mesial zone of the third primary ruga and regional palatal vault, the other was the palate) and Baumrind's best-fit for cephalometric superimposition. The amounts of incisor and molar movement were measured and a comparative study was performed.

三。选择25例拔除上颌第一双尖牙正畸患者治疗前、后的上颌模型进行三维重建，分别使用第三腭皱近心端局部腭穹隆和腭部对同一患者治疗前、后的数字化模型进行局域重叠，以治疗前后头颅侧位片的 best-fit重叠为评价标准，比较三种方法之间的差异，对应用三维数字化牙颌模型纵向重叠评价正畸治疗前、后的牙齿移动进行探索性研究。

Methods we developed a surgical technique to correct short nose by increase tissue volume in nasal tip ,nasal alae and the columella. The technique contain three steps:① Wide dissection and prolongation of the outer skin envelope to cover the lengthened framework by a "V" formed surgical approach from columellar base to inner edge of alae.②Silicone or expanded polytetrafluoroethylene implant is used to correct saddle nose and to length nasal framework.③A papilionaceous concha composite graft containing a elliptic ear cartilage and a onlay "V" formed skin and subcutaneous tissue is grafted to inner edge of columella and alae. Results we performed the procedure on 8 patients.

通过8例短鼻缺陷受术者采用蝶形复合耳郭组织游离移植到鼻尖鼻翼以增加鼻尖鼻翼的组织量以达到延长短鼻的目的，手术分为三个步骤：首先从鼻小柱基底到两侧鼻翼内缘做V形切口，广泛分离鼻尾端皮肤粘膜；然后，通过硅胶或ePTFE假体材料间插并缝合于两侧大翼软骨之间延长鼻尖部软骨支架；最后，将蝶形耳后复合组织块移植到切口部以增加鼻尖鼻翼部的组织量，术后观察该法延长短鼻的实际效果。

So far, more than 400 people to the United States, Canada, New Zealand, Saudi Arabia, working in 13 countries, nearly 1,800 people to Beijing, Shenzhen, Tianjin, Shanghai and other mainland city of employment, the employment rate reached 100 percent, and the quality of employment and stability of the good; Since 2003, the schools are with the United States, Canada, Australia, New Zealand and four countries, five institutions have established stable cooperative relationship, the external output channels, step by step flow; Ministry of Education, Ministry of Health and Hebei Province, Chengde City, as well as foreign institutions in the schools to set up various training bases 5; the past five years, the school sponsoring scale nearly one-fold, the campus covers an area of increased 113%, construction area increased by 1.5 million square meters, laboratory instruments and audio-visual equipment , books and other school conditions have been substantially improved; the establishment of teaching practice base 95, including major hospitals outside the province such as the Beijing Union Medical College Hospital, PLA General Hospital, the Third Affiliated Hospital of Peking University Department of Medicine, Shenzhen Second People's Hospital, Shanghai Punan A total of 44 hospitals, etc.; the overall quality of teaching staff has been significantly improved, train 21 graduate students, teachers, served as the textbook editor of the National Commission 8, deputy editor of 3; In recent years, the school received more than 20 each year and several other universities abroad, missions or study visits of experts and scholars, the social impact of growing; school sponsoring the good results achieved by the media attention, the China Education reported that vocational and technical education in China magazine, China's economic construction magazine, Hebei Daily News and a number of media school characteristics school carried out varying degrees of coverage, such as the China Education Daily,"features professional make angels in white taken the door," the Chinese Journal of Vocational and Technical Education "angel from here into the world," and so on.

截至目前，已有400多人到美国、加拿大、新西兰、沙特阿拉伯等13个国家工作，有近1800人到北京、深圳、天津、上海等国内大城市就业，就业率达到了百分之百，而且就业质量和稳定性良好；2003年以来，学校分别与美国、加拿大、澳大利亚、新西兰等4个国家的5个机构建立了比较稳定的合作关系，对外输出渠道逐步畅通；教育部、卫生部和河北省、承德市以及国外机构在学校建立各类培训基地5个；近5年来，学校办学规模扩大了近1倍，校园占地增加了113％，建筑面积增加了1.5万平方米，实验仪器和电教设备、图书等办学条件得到了实质性的改善；建立教学实习基地95个，其中省外大医院如北京协和医院、解放军总医院、北京大学医学部第三附属医院、深圳第二人民医院、上海浦南医院等共44所；师资队伍综合素质得到显著提高，培养研究生21名，教师担任全国统编教材主编8部，副主编3部；近年来，学校每年接待20余所兄弟院校和数个国外访问团或专家学者的考察访问，社会影响不断扩大；学校办学取得的良好成绩受到了媒体的关注，中国教育报、中国职业技术教育杂志、中国经济建设杂志、河北日报等多家媒体对学校特色办学情况进行了不同程度的报道，如中国教育报的《特色专业让白衣天使跨出国门》、中国职业技术教育杂志的《天使从这里走向世界》，等等。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilter's frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the user's interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了七个部分：第一部分对防火墙的概述；第二部分则介绍此次开发的平台LINUX和软调环境；第三部分对几种网络协议做了简单的分析；第四部分分析了网络攻击及其防御措施；第五部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第六部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

This thesis mainly deals with the packet filter firewall by applicating Netfilter on the basis of Linux, consisting of seven parts: first, it generally describes the firewall; second, it introduces the exploiting platform Linux and the software debug environment; third, it simply analyzes some networking protocols; fourth, it analyzes the network attacks and their defensing measures; fifth, it describes the most important part of the thesis--the analysis of netfilters frame and the exploiting and designing process of the firewall; sixth, it introduces the design of the device drivers of the Linux which is the theory base of exploting the users interface ; the last part is the applicating guide of its exploiting process.

本文介绍了运用Netfilter防火墙技术，在LINUX环境上实现包过滤防火墙的方法和过程，在内容上主要包括了七个部分：第一部分对防火墙的概述；第二部分则介绍此次开发的平台LINUX和软调环境；第三部分对几种网络协议做了简单的分析；第四部分分析了网络攻击及其防御措施；第五部分则是本次设计的核心部分Netfilter框架分析以及防火墙的开发设计思路；第六部分则介绍LINUX设备驱动程序的设计，它是开发用户接口部分的理论基础；最后则是所开发程序的使用说明部分。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。