性选择的

The metal mold design now adopt a form of one mole but six cayities ,this way can improve the efficiency;the molds joint face is the balls neutral plane,that makes the mold opened convenient;In the gating,the runner and the riser is the same ,and this design adopt scum riser,that make sure a better routing and make sure the castings feeding;the mold use gravity to lockwasher itself;the cores material is quartz sand,and spread high tempearature resistant dope on it;In the design, same taper in the guide bush of the core box is needed to make sure open the mold easily;The insert blocks of the core box are made by numercial control processing,this way reduce the cost of production; the scale division positioner make sure the same specification has better interchangeability,also,as all the machining can be finished on the general machine tool,it make the cost low,so it can be spreaded abundant in the medium and minor enterprise;when workout the molds processing technology,this design adopt the roughs two end plane as benchmark,the ball cavities are machined by scale division positioner;then use Autocad,Pro/e to draw planar and three dimension blueprint,use Pro/e to make three.dimensional animation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

The metal mold design nowadopt a form of one mole but six cayities ,this way can improve theefficiency;the mold's joint face is theball's neutral plane,that makes the mold openedconvenient;In the gating,the runner and the riser is the same ,andthis design adopt scum riser,that make sure a better routing andmake sure the casting's feeding;the mold usegravity to lockwasher itself;the core's materialis quartz sand,and spread high tempearature resistant dope on it;Inthe design, same taper in the guide bush of the core box is neededto make sure open the mold easily;The insert blocks of the core boxare made by numercial control processing,this way reduce the costof production; the scale division positioner make sure the samespecification has better interchangeability,also,as all themachining can be finished on the general machine tool,it make thecost low,so it can be spreaded abundant in the medium and minorenterprise;when workout the mold's processingtechnology,this design adopt the rough's two endplane as benchmark,the ball cavities are machined by scale divisionpositioner;then use Autocad,Pro/e to draw planar and threedimension blueprint,use Pro/e to make three-dimensionalanimation.

本次设计的群铸模具采用一模六腔形式，生产效率高；模具分型面选择磨球的中性面，使得分模方便；浇注系统采用浇冒口一体形式和集渣包设计，保证了良好的加工工艺和补缩；锁模方式为重力锁模；砂芯采用石英砂，并在表层涂以耐高温涂料；芯盒导套选择一定的锥度，使取模容易；芯盒镶块运用数控加工，降低了生产成本；分度胎具保证了同种规格模具具有良好的互换性，而且因为所有加工基本都可以在普通机床上完成，生产成本低，可以为中小型企业普遍采用；在加工工艺编制过程中，采用两端面互为基准，球腔用专业夹具加工；Autocad，Pro/e分别制作了模具的二维和三维立体图，并运用Pro/e制作了三维动画演示。

This text is divided into seven greatest parts totally, the first part is the analysises of the combined part of technic and construction; The second part is a coordination to combined part project design;The third part is the project reasoning of the assemble tongs, synthesizing the consideration with the economic angle and the technique,choice a reasonable and oecumenical design project of the assemble tongs;The fourth part is design of assemble tongs for combined part, primarily discussing the choice of framework、localizer and clamp;The fifth part is the instruction of assemble tongs in the combined part assemble;The sixth part is the instruction of technique term and actual technique problems handles in the design; The seventh part is the design of the

本文共分七大部分，第一部分是组合件的结构及工艺性分析；第二部分是组合件的协调方案设计；第三部分是组合件装配型架的方案论证，从技术和经济角度综合考虑，选择合理、经济的型架设计方案；第四部分是组合件的装配型架设计，主要论述了骨架，定位件和夹紧件的选择；第五部分是介绍了组合件装配型架的安装；第六部分是组合件装配型架的设计技术条件及实际技术问题的处理；第七部分钣金件加工设计。

Methods1. Compared with adult female rats, aged female rats without oestrum were chosen by using RIA technology and sexual hormone was changed remarkably. Theses aged rats were divided into three groups（GNK group, HRT group and control group）. Treated them respectively with GNK, nilestriol and distilled water 3 months.

通过用阴道脱落细胞涂片检测发情周期的改变，放免法测定血清性激素的水平，与正常青年雌性大鼠比较，选择阴道脱落细胞无发情期改变，血清性激素水平有增龄性改变并且差异有显著性的老年雌性大鼠作为研究对象，分别用中药复方更年康和尼尔雌醇灌胃3个月，观察中药复方更年康对老年雌鼠的治疗作用。2。

Your choice out of the methods to lose cellulite will on your comfort level about noninvasive and invasive treatments.

您的选择出来的方法，失去脂肪会在您的舒适程度约的无创性和侵入性的治疗方法。

To probe into either the attractiveness to or avoidance from phylloxera of grape rootstocks and cultivars with different tolerance, as well as into the volatile components from their roots, the method of invitro root segment culture was used to investigate the selectivity of Phylloxera viticola Fitch to the roots of grape rootstocks '5BB' and '140Ru' and cultivar 'Kyoho'.

为了探讨不同抗性水平砧木及品种对根瘤蚜吸引及驱避效应以及鉴定挥发性物质组分，采用离体根段培养法测定葡萄根瘤蚜Phylloxera viticola Fitch对砧木5BB，140 Ru及栽培品种巨峰的选择性，发现根瘤蚜对栽培品种巨峰的根段具有很强的选择性，至接种后3d，67.13%的根瘤蚜优先选择巨峰；而对5BB和140 Ru的选择性却很差，分别有15.29%和17.58%的根瘤蚜选择5BB及140 Ru。

This paper pointed out that the complex sentence of selective default and its closely related,"would rather" sentence, and "even if" the sentence is similar to selective, concessions are in the lower body show the premise of selective, and selective concessions are inseparable ; However, the two sentences in selective areas there are also many different and specific expression: the different levels of concessions, the focus of different default, choose different context, the choice of the situation is different and selectivity Weak, such as different levels of five.

本文指出，复句的选择性与其预设密切相关，"宁可"句和"即使"句的选择性具有相同之处，都是在让步的前提下体现出选择性，让步性与选择性是密不可分的；但是，两个句式在选择性方面也存在很多不同之处，具体体现为：让步的程度不同、预设的重点不同、选择语境有所不同、选择项的情况不同以及选择性强弱程度不同等五个方面。关键词：让步复句；预设；选择性

The 3 characters of the safe vegetable products, which are secretiveness of quality, posteriority of utility, and the consumers' suspicion to the product certification, bring many negative effects on production and consumption, such as asymmetric market information, producers' moral risk, reduction of consumer preference and convers choice.

而安全蔬菜质量的隐匿性、效用的滞后性和消费者对产品认证的置疑性带来市场信息不完全，又给生产与消费造成诸多负面影响，如生产者实施"道德风险"、消费者偏好程度降低、消费者的逆向选择等。

Although so,the research on weakening completeness axiomof preference relation is hardly found in touchable references.

主要集中于对Von Neumann-Morgenstern的独立性公理假设和偏好关系传递性假设方面的弱化，比如不要求独立性和传递性等，从而使新的行为公理假设既能够满足实际中人们的选择行为，同时又能满足规范理论的要求。

As an ideal prime immunization vaccine,the DNA vaccine has the advantages of high purity,continuous expression of antigens with low dose, repeatable immunization and inducement of memory CTL with high titer.Similarly, recombinant virus can not only highly express the target antigen,simulate the inducement process of virus infection on body immunity,and induce various cytokines,but also be beneficial to the interaction of high-affinity antibodies with T cell receptors,and the generation of Th1 reaction and CTL reaction.

DNA疫苗抗原纯度高，持续表达低剂量的抗原，可多次重复免疫以及诱导高效价记忆性细胞毒性T淋巴细胞反应，是理想的用于初次免疫的疫苗；重组病毒能高效表达目的抗原，模拟病毒感染诱导机体免疫的天然过程，能诱发多种细胞因子，而且有利于高亲和性抗体和T细胞受体的选择，可以有效地产生Th1型和CTL反应。

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。