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A measuring system which mainly consists of a high precision motorized translation stage of one dimension, POINT GREY Flea2-14S3 CCD camera and LED light source was designed and constructed. Based on a detailed analysis for experiment results, the periodic changing law of system error of LED facula centroid location in this measuring system was found. The results indicate that based on Flea2-l4S3 CCD camera, the random error of facula centroid location is about 0.018 pixels, the system error is about 0.06 pixels, and the total error is about 0.063 pixels (1/15 pixels). According to the total error above, this CCD imager can be widely used in many measuring systems which count on facula centroid subpixel detection.

利用高精度一维电动平移台、POINT GREY Flea2-14S3 CCD相机和LED光源构建了测试系统，对测试结果进行研究和讨论，发现了测试系统LED光斑质心定位系统误差的周期性变化规律，计算得到了基于Flea2-14S3 CCD相机的光斑质心定位随机误差为0.018pixels，系统误差为0.06pixels，总体误差为0.063pixels（约1/15pixels），能够应用于以光斑质心检测为手段的测量系统中。

After sitting a while longer, and musing what I should do in this Case, I was not able to bear sitting in Ignorance any longer; so setting up my Ladder to the Side of the Hill, where there was a flat Place, as I observ'd before, and then pulling the Ladder up after me, I set it up again, and mounted to the Top of the Hill; and pulling out my Perspective Glass, which I had taken on Purpose, I laid me down flat on my Belly, on the Ground, and began to look for the Place; I presently found there was no less than nine naked Savages, sitting round a small Fire, they had made, not to warm them; for they had no need of that, the Weather being extreme hot; but as I suppos'd, to dress some of their barbarous Diet, of humane Flesh, which they had brought with them, whether alive or dead I could not know.

在我自己的想象中，我成了一个古代的巨人，据说这些巨人住在山岩的洞穴里，没有人能攻击他们。我自己想，只要我呆在洞里，即使有五百个野人来追踪我，也不会找到我；就是给他们发现了，也不敢向我进攻。我发现洞穴的第二天，那只垂死的老山羊就在洞口边死

The classical cutting stock algorithm——column generation technology , and wrap up rectangle technology for abnormity are analyzed ; The development of AutoCAD with ObjectARX is studied and the generating method of cutting outline drawing and layout drawing were found out on the basis of analyses of the graph database structure of AutoCAD and the basic operation of it ; The process planning technology of plate material cutting orienting numerical control is studied a process planning method directly based on layout drawing is established ; The emulation technology in AutoCAD is studied and a kind of dynamic emulation method is put forward , which is realized by incrementally modifying graph entity ; The postposition of NC program of the integrated cutting system constructed on software plug-in is proposed , which can effectively solve the problem that it is difficult for a numerical control programming system to be common , which is caused by the difference of instruction format and control parameter between different type of numerical control machine .

分析了经典的矩形件优化排样算法——列生成法和针对异形件的矩形包络算法；研究了基于ObjectARX 的AutoCAD 开发技术，结合对AutoCAD 图形数据库结构及其基本操作的分析，给出了下料轮廓图和排样图的生成方法；研究了板材数控下料加工的工艺处理技术，建立了一种直接基于排样图进行的图形交互工艺规划方法；研究了在AutoCAD环境中的板材下料数控仿真技术，给出一种通过增量修改图形实体对象实现的动态仿真方法；提出以软插件技术构建集成下料系统的数控编程后置处理部分，能够有效解决因数控下料机床指令格式及控制参数不统一导致的自动编程软件系统不易实现通用性的问题。

Methods In 1998,PPD testing was conducted on 12-years-old students from Fangshan district (BCG revaccination termination group) and Tongzhou district ( BCG revaccination not termination group) of Beijing respectively,PPD reactions w ere measured at 72 hours,chest X-ray examinations were performed on those with average diameter≥6mm indurations,acid-fast bacillus detection was done for one s found exhibiting lung shadows and so on.

1998年分别对北京市房山区12岁学生和北京市通州区12岁学生行结核菌素试验，72小时测量PPD反应--凡硬结平均直径≥6mm者行胸部X线检查，发现肺部阴影者查痰抗酸菌等。

Brown rhizomorph and hyphae can be seen on the seedlings'rhizome, main root and side root while nothing is on the tip of the root.It was found that rhizomorph on the surface of roots would die after inoculation in 90 days in pot.

子实体单生或丛生，出菇至成熟3 d~4 d，单个子实体重20.0 g~62.0 g；小粒咖啡苗的根茎、主根及侧根被茶褐色的菌索和菌膜包裹，而根尖及靠近根尖的侧根上没有菌丝和菌索生长或生长很少；盆栽小粒咖啡苗，在接种90 d后其根系表面的菌索死亡。

Then studied on several clays affect on the stability of ferrate solution. The results show the addition of clays retarded the decomposition of ferrate in alkaline solution. Through analysed the results of test, we found this due to the silicium or polysilicium of clays and its increasing stabilizing effect on ferrate when the concentration of silicium or polysilicium increases.

接着作了粘土对高铁酸盐溶液的稳定作用的研究，结果表明粘土对高铁酸盐溶液有良好的稳定作用，通过实验分析得到其稳定作用是由于粘土中溶出的硅酸根或多聚硅酸根所致，且随着其浓度的增加对高铁酸盐的稳定作用增强。

By choosing fuels with an increased degree of sootiness it was found that the heat fluxes do not depend only on the gas temperature, as claimed before for heat fluxes on the floor, but also on the magnitude of the heat release rate and the fuel sootiness.

在选择燃料方面，笔者的依据是燃料燃烧产生的烟尘应越来越浓。试验发现，与以前对地板的研究结果有所不同的是，墙体上的热通量不仅仅取决于烟气温度，还取决于热释放速率的强弱以及燃料所产生的烟尘的多少。

In the part of the vibration experiments and analysis, firstly, used the simple-beam theory to estimate the natural frequency of the beam of the 20-headed computerized embroidery machine.secondly, measured the beam of its low rank natural frequency, the beams horizontal vibrating acceleration amplitude, speed amplitude and the displacement amplitude in different rev and different turn parts. Found that it is sympathetic vibration, which bring on the thread-broken rate rise rapidly. On this base, established the finite element analysis modle of the vibrating beam, and took on hamonic analysis and modal analysis with the mold. The rusult of test and analysis offer the basis for farther improvement of the computerized embroidery machine.

振动分析部分，首先由简单梁理论出发，对横梁的固有频率进行估算；接着通过测振仪器对20头电脑刺绣机横梁进行了试验模态分析和不同工况振动测试；获得了横梁前四阶固有频率和模态振型，以及在不同工作转速、不同回转部件下横梁振动的加速度幅值、速度幅值和位移幅值；找到了横梁振动加剧的原因——共振；在此基础上建立了符合实际情况的横梁有限元模型，对模型进行了模态和谐响应计算，证实了模型的可靠性，为下一步的改进设计提供了依据。

Often the best price on the Adidas tennis is found after dark at the Shihlin night market or the best price on jewelry on Sunday morning under the Sung Chiang Road overpass.

时常，买爱迪达网球拍的便宜货，是天黑以後的士林夜市；买便宜珠宝，是星期天早上松江路的陆桥下面。

In fact, on one hand, it is often found that two graphs with the same number of verticesand the same connectivity(edge-connectivity) may result in entirely different forms after a minimum disconnecting set of vertices is removed, one may be totally disconnected while the other may consist of a few very stable components, and thus be much easier to reconstruct.On the other hand, we often face this question: how easily can we disrupt a system at the least cost, on the contrary, when we set up a system, especially a communication system, we try our best to make it as stable as possible that it can be reconstructed easily if it do get disrupted .

对于两个具有相同点数，具有相同点连通度的图，从图中分别去掉使图不连通的点集后，所得图的结构可能完全不同，这是因为点连通度、边连通度和局部点、边连通度等连通性参数仅反映了系统被破坏的难易程度，而对系统遭受破坏的程度并没有明确的反映。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。