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ABSTRACT In this paper, integrated with surface topography, asperity contact behaviour and fluid mechanics, the lubrication of real engineering surfaces and their rubbing behaviour are described in experiment and theory.

本文结合实际工程表面的形貌特征、表面微凸体接触力学性质和润滑力学性质对粗糙表面的润滑及摩擦特性进行了系统的实验研究和理论分析。

Pre-stressed composite space truss is one of the new kind of space structure systems developed on the basis of prestress and space truss, which consists of steel and reinforced concrete. At present the study in this field is just being begun in our country. Therefore, in this paper static and dynamic performances of pre-stressed composite space truss associated with a practical engineering are studied, in addition, dynamic test on construction site and model experiment are done. Finally, we conclude this structure is well in stress and stiffness and dynamic characteristics.

预应力组合网架是一种基于网架和预应力技术发展起来的由钢和钢筋混凝土组合而成的新型预应力空间结构体系，目前国内在此领域的研究和应用都较少，为此，本文结合实际工程对预应力组合网架进行了静力和动力的分析研究，并作了施工现场的动力测试及模型试验，总结出预应力组合网架受力比较合理，刚度、动力特性好，是值得推广的一种空间结构形式。

The performance parameters and factors that influence the astigmatic system are discussed. Furthermore, experiment result shows good agreement with the theoretical analysis.

实验结果证明并行像散探测系统特性与理论分析是基本吻合的，表明像散法在并行三维检测中的应用是可行的。

Moreover, we should enthusiastically explore, audaciously experiment, quickly assess our experience, and blaze a variety of new trails to introduce public ownership in a form that is compatible with production for the benefit of the whole country.

而且， 我们应该热情探索，大胆试验，迅速评价我们的经验，并且以多种方式实施，使公有制和整个国家的利益一致。

This experiment is in frequency adjustment X-mitter about that miniwatt frequency adjustment X-mitter operating principle, analyses the debugging making method and their installation, the microphone changes implication into an audible signal, wave an audible signal being modulated as a result of enlarging the day afer tomorrow being in progress to the carrier wave , producing frequency adjustment, by the fact that air wire launching the frequency adjustment electromagnetic wave to the outside , the radio set just can with frequency adjustment meet hear clear implication.

本毕业设计是关于小功率调频发射机工作原理、分析制作方法及其安装调试，在调频发射机中，话筒将话音转化为音频信号，音频信号经放大后对载波进行调制，产生调频波，通过天线向外发射调频电磁波，用调频收音机便可以接听到清楚的话音。

The volt-ampere characteristic property with photodiode and photosensitive audion is the basis designing an experiment's.

以光敏二极管和光敏三极管的伏安特性作为设计实验的基础。

In low age larva is filled period the effect of prevention and cure to garlic root maggot undertakes different drug experiment and be investigated, the result makes clear: 27 years garlic root maggot produces 3 generation in Jiangsu, generation of live through the winter is imaginal in March the last ten-day of a month fills hair; the middle ten days of a month on April fills generation larva hair, the middle ten days of a month saw in May aurelian, the last ten-day of a month was; of fastigium of generation imago ascend to heaven and become immortal in May the 2nd generation is larval the first ten days of a month was filled to the middle ten days of a month in June hair, the last ten-day of a month came in June in September the last ten-day of a month with aurelian more summer, 2 generation are imaginal at; of the ascend to heaven and become immortal at the beginning of October coming by September the 3rd acting larval fastigium is on October the middle ten days of a month, the first ten days of a month is larval in November in succession pupate live through the winter, immediately following in time year of spring (the middle ten days of a month on April) begin emergence.

在低龄幼虫盛期就不同药剂对大蒜根蛆的防治效果进行试验和调查，结果表明：2007年大蒜根蛆在江苏发生3代，越冬代成虫于3月下旬盛发；第一代幼虫4月上中旬盛发，5月中旬见蛹，5月下旬为一代成虫羽化高峰期；第二代幼虫6月上旬至中旬盛发，6月下旬至9月下旬以蛹越夏，二代成虫于9月底至10月初羽化；第三代幼虫高峰期在10月上中旬，11月上旬幼虫陆续化蛹越冬，翌年春季(4月上中旬)开始羽化。

At the sametime, to resolve the problem of inferior sense of reality in traditional visual system of automobilism simulator, author added Shader based on Cg Language, and created lifelike water surface effect, multi-resolution texture effect and other special effects, which strengthened screen quality of the whole scene.This automobilism simulator realized simulation experiment on non-level roadbed. On one side, it improved its dynamics model to fit various kinds of roadbeds;and on the other side, it improved its visual simulation system, which could accord with training demands and satisfy requirements of society.

汽车驾驶模拟器新一代实时视景系统所生成的具备虚拟现实特点的交通场景，增强了仿真试验环境的效果，而它所实现的路面几何和物理属性的探测，解决了非水平路面汽车动力学模型的路面输入问题，为实现汽车动力学仿真奠

Combing with experiment,this thesis analizes the relationship of facet average velocity and flushing performance.

本文还用试验的方法研究了冲水量与冲洗噪声和冲洗性能的关系。

This paper presents the design and experiment of a high performance three-stage axial fan with forward swept blades.

本文介绍了一台高性能前掠叶型三级轴流风扇的设计与试验研究。

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。