优势种

The comparison of the predominant bacterial community structure in the gastrointestinal walls between Lutjanus sebae (Cuvier, 1816) and Ephippus orbis (Bloch, 1787) based on 16S rDNA PCR-DGGE fingerprint using a culture-independent method was conducted in the paper. The results showed that abundant bacterium were planted in the gastrointestinal walls of both marine finfish species, the similarity was above 50% in the community structures in the gastrointestinal walls with the highest similarity of 67% in the bacterial composition between the intestinal wall of Luljonus sebae and that of Ephippus orbis, and the walls of the stomach and the intestinal in one fish shared the same most predominant bacteria species, which might reflect the same aquaculture environment and the diet fed for both finfish species.

本文采用免培养的16S rDNA梯度凝胶电泳技术对集约化海水网箱养殖川纹笛鲷Lutjanus sebae、及圆白鲳Ephippus orbis消化道壁优势菌群结构进行了比较分析研究结果显示川纹笛鲷及圆白鲳消化道壁存在着大量细菌群落，对DGGE指纹图谱聚类分析表明两种鱼肠道壁及胃壁菌群组成相似度高于50%，其中二者肠道壁细菌组成相似性最高(67%)，这些可能与两种鱼养殖在同一水域、摄食相同饵料相关，另外通过软件对DGGE指纹带谱相对丰度分析表明同种鱼肠道壁及胃壁具有相同最大优势菌群。

Now day's main competitions are the competition of technology and intelligence.But all these are attributed to the best use of its potential.Hence,how to realize this has become amajor subject.While the most complicated and difficult factor is how to encourage employees and give fuel play of their potentials.Since the policy of opening the country up to the world,the payment reform for the material promotion has been anot topic.But heather can give full play of the payment encouragement only on the basis of material promotion,which has ravishingly aroused people's consideration.However,no doubt,one of the main secrets for the sustainable development of an enterprise is to establish areasonable and effective payment system to basically ensure the sup erior competition of human resource and turn it into the advantage of market competition.

企业赖以生存和发展的基础可以概括为五种资源：资金、财产、技术、信息和人力，在这五种资源中，最重要的是人力资源当今的竞争主要是科技的竞争、智力的竞争，而这些归根结底都将是人力资源开发及其潜能充分利用的竞争所以，如何实现人力资源开发及其潜能的充分利用是企业公认的一大课题，而其中最为复杂和困难的，就是如何做好人员激励，使其潜能充分得到发挥改革开放以来，以提升物质利益为主题的薪酬改革一度成为了我国企业改革的暖门话题，而仅仅靠提升物质利益是否就可以充分发挥薪酬的激励作用也日益引起了人们的思考但不可否认企业能可持续发展的重要秘诀之一，应是建立合理有效的薪酬体系，从根本上保证人力资源的竞争优势，并将之转化为市场竞争的优势在本文中，笔者的主

By analyzing the core competence the dissertation has proved it is a matching standard of the two-element structure. The aims of any management changing are forming and keeping the competition predominance. The steady resource of the competition predominance is forming and keeping the competition predominance. The core element of competition predominance (such as, the foresight, leading, innovation, quality, entrance vallum, customer regulation, changing cost and partner-relationship.) is a key factor that to found a sueeessful enterprise whatever the changing has occurred in the environment.

通过对核心竞争力的分析证明核心竞争力是两种要素结构匹配的标准或依据；管理变革（包括基于信息系统的管理变革）的目的是为了形成并保持竞争优势，而稳定的竞争优势的来源是形成并保持核心竞争力；不论环境发生了怎样的变化，远见、领导、创新、质量、进入壁垒、消费者规定、转换成本和伙伴关系等仍是建立一个成功企业或具备竞争优势企业至关重要的因素，它们来源于管理系统7要素：文化、人、战略、组织、专业管理、技术管理和信息的有效结合，这种结合形成核心竞争力；管理变革的重要途径就是形成核心竞争力的关键要素的有效结合。

Result 10 308 insects were identified, belonging to 9 orders, 43 families, 68 species of Insecta and I families, 1 species of Arachnida. The result revealed that the individuals of the pest sub-community were more than that of the natural enemies sub-community, the dominant concentration and dominance of the pest sub-community were the biggest, diversity index of the natural enemies sub-community was more than that of the pest sub-community.

结果］共调查昆虫10 308头，分属于昆虫纲9个目、43科6、8种以及蛛形纲1科、1种；野生植物害虫亚群落的物种个体数多于天敌亚群落的个体数，害虫亚群落的优势集中性和优势度最大，天敌亚群落的多样性指数大于害虫亚群落。

The representative families are Dryopteridaceae, Athyriaceae, Polypodiaceae, Thelypteridaceae, Selaginellaceae and Aspleniaceae. The main genera are Dryopteris, Selaginella, Asplenium, Arachniodes, Pteris, Allantodia and Plagiogyria. The top families' distribution types are cosmopolitan and pantropic ones, the main genera are pantropical ones, while species distribution type belong to the east Asia type and represents the feature of subtropics transition to warm temperated areatype. As for the order of closeness, the sequence of pteridophytes floristic relations between Songyang and the adjacent regions goes as Southwest China, South China, Central China, Japan, North China, Northwest China and Northeast China. The six upland pteridophytes next to Songyang can be put into the same natural flora because of its closest relationship. But compared with other 11 upland fern flora in China, fern in Songyang is not rich enough. There are 37 species endemic to China in Songyang.

结果表明，松阳蕨类植物共有38科72属161种7变种；优势科为鳞毛蕨科、蹄盖蕨科、水龙骨科、金星蕨科、卷柏科、铁角蕨科，优势属为鳞毛蕨属、卷柏属、铁角蕨属、复叶耳蕨属、凤尾蕨属、短肠蕨属、瘤足蕨属；科的分布以世界分布和泛热带分布为主，属的分布以泛热带分布为最多，种以东亚分布类型为主，特别是中国—日本分布类型最多，表现出亚热带向暖温带过渡的特点；本区与邻近地区蕨类植物区系关系的密切程度由大到小依次为西南、华南、华中、日本、华北、西北、东北；与邻近的6个山地蕨类植物区系的亲缘关系密切，可以划为同一自然区；与国内11山地蕨类植物区系相比，松阳的蕨类植物丰富程度不高；松阳拥有37种中国特有蕨类植物及一些珍稀蕨类植物，有较高的保护价值。

The results showed that the freshwater species were predominant, and 45 species of algal (5 phylums, 32 genera), in which 18 species of Bacillariophyta belong to 12 genera, 15 species of Chlorophyta one genus, 10 species of Cyanophyta 7 genera, and one specie of Euglenphyta and Chrysophyta; 37 species of zooplankton, in which 9 species of Protozoa, 14 species of Rotifera,...

结果表明，淡水种类占绝对优势，藻类5门32属45种，其中硅藻12属18种，绿藻1属15种，蓝藻7属10种，裸藻、金藻各1属1种；浮游动物共计37种，其中原生动物9种，轮虫14种，枝角类2种，桡足类8种，浮游幼虫及其它4种；底栖动物20种，分别为环节动物的多毛类7种，寡毛类2种，软体动物8种，甲壳动物2种，鱼类1种。

A total of 19,781 insect individuals belonging to 959 morphospecies, 145 families and 15 orders were collected. The most abundant orders were Diptera (69.68%), Homoptera (11.19%) and Hymenoptera (10.10%). At the family level, Chironomidae (17.67%), Mycetophilidae (12.32%), Cicadellidae (8.32%), Ceratopogonidae (7.56%), Sciaridae (7.39%) and Cecidomyiidae (5.81%) were the most abundant taxa. Although there were little differences in similarity among the three sampling plots, the dominant orders and families in theses plots differed. The meadow had the highest diversity while the spruce forest had the lowest diversity.

结果：三样区共采集到19，781只昆虫，分属15目、145科、959个形态种；各目的组成百分比，以双翅目(69.68%)、同翅目(11.19%)及膜翅目(10.10%)最为优势；在科的类阶，则是以摇蚊科(17.67%)、蕈蚋科(12.32%)、叶蝉科(8.32%)、糠蚊科(7.56%)、黑翅蕈蚋科(7.39%)及瘿蚋科(5.81%)为优势类群；三个样区的相似度差异不大，但是优势类群则不相同；无论丰度、均匀度及多样性指标，箭竹草原样区均高过於云杉林样区及铁杉林样区。

The thesis toke problem of deformation and destroying of the earth mass as it's invention, integrated the earth mass's existing environment, ingredients and macrostructure, discovered mechanism of deforming and destroying, made clear the relationships between those.Through outdoors samples, indoors examination surface wave testing and audio wave testing ,do some research on physical, mechanical, chemical, disintegrative and dynamics property of stuff of earth mass and proposed four kinds of earth mass's stuff formed type;under the guidance of theory of dominant structural surface and adopting precision measurement of structural surface, proposed three dominant kinds of structural surface assembling;based on those , proposed four types of earth mass's deformation and destroying, carried out rationed estimation of stability on four types, then definite the characters of deforming and destroying and controlled relation between environment , stuff, macrostructure and deformation and destroying of mass earth, and breakthrough ordinary principle about soil's deformation and destroying, further proofed the theory of earth mass cybernetics's popularization

本学位论文针对台地危险土体的变形破坏问题，将土体的赋存环境、土体物质组成和土体宏观结构的研究紧密地结合，阐明了土体变形破坏的机制，明晰了土体变形破坏与土体的赋存环境、土体材料组成、土体宏观结构三要素之间的关系，并从土体的物质组成的角度，以野外取样、室内实验、现场面波、声波无损伤测试为手段，研究了土体物质的物理、力学、化学、矿物、崩解性、动力学性质，提出了研究区内土体物质成分的四种组合形式；以优势结构面理论为指导，以结构面的精确测绘为手段，通过统计、归纳与分析，提出三种有利于台地危险土体变形破坏的优势组合形式；据此提出了具有广泛代表意义的台地危险土体变形破坏的四种模式，并对其进行稳定性评价，从而明确了危险土体的宏观结构对变形破坏的控制作用，映证了土体结构控制论。

PCR-DGGE fingerprint showed that there were 5 dominating bacteria in crude oil culture and 2 dominating bacteria in Hexadecane culture. Dominating bacteria were different between crude oil culture and Hexadecane culture.

PCR-DGGE分析结果表明，以原油和正十六烷为碳源的富集液中优势菌分别有5种和2种，且2种富集液中的优势菌明显不同。

In this thesis, we chose two wild rodents inhibiting in the north of China Mongolian gerbil (Meriones unguiculatus and Brandt's vole . The effects of short photoperiod and cold exposure to thermogenesis, and the mechanism of thermogenic regulation were studied. The new genes participating in cold adaptation were also screened by DDRT-PCR.

本文选择了华北地区的两种野生啮齿类（生活在内蒙古荒漠和半荒漠地区的优势鼠种长爪沙鼠和生活在内蒙古干旱草原的优势鼠种布氏田鼠）为研究对象，探讨光照对长爪沙鼠产热的影响，以及在低温因子作用下两种鼠适应性产热变化的机理，并利用差异显示技术试图寻找与冷适应性产热相关的基因。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。