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Based on the study of IGES; STEP, especially the study of DXF, a program interface is developed, by which the data can be shared among different CAD systems. According to the different Characters, the respective tool paths are designed. And by a machine configure file, the General postposition process is deal with. On the research of the general simulation technology that is based on the NC codes. By analyzing the characteristics of the CNC system and the NC codes, a set of general simulation interface is developed.

通过对IGES和STEP等产品数据交换标准的探讨，尤其是对应用广泛的DXF的深入分析，建立了与不同CAD系统实现数据共享的编程接口；根据零件的不同加工特征提出了相应的走刀路线，并通过机床配置文件，初步实现了通用后置处理；研究了数控系统和NC代码的特点，建立了仿真通用接口，并提出代码翻译地基本思路。

The method of reading the line, arc, spine, tolerances, surface roughness and full messages of the part from DXF file generated by AutoCAD is mainly introduced. Based on the study of DXF, a program interface is developed, by which the data can be shared among different CAD systems. According to the different Characters, the respective tool paths are designed. And by a machine configure file, the General postposition process is deal with. On the research of thegeneral simulation technology that is based on the NC codes. By analyzing the characteristics of the CNC system and the NC codes, a set of general simulation interface is developed.

本文主要介绍如何从AutoCAD生成的DXF文件中读取直线、圆弧、样条曲线、尺寸公差、表面粗糙度等信息及零件的全局信息，结合回转体零件的特点，通过对应用广泛的DXF的深入分析，建立了与不同CAD系统实现数据共享的编程接口；根据零件的不同加工特征提出了相应的走刀路线，并通过机床配置文件，初步实现了通用后置处理；研究了数控系统和NC代码的特点，建立了仿真通用接口，并提出代码翻译地基本思路。

Finally, base on research of genetic algorithm and rough sets, analysis of the existing primary algorithm of attribute reduction based on the traditonal genetic algorithm, an improved algorithm of rough set attribute reduction base on dependability and genetic algorithm is presented in this paper.

最后，对遗传算法和粗糙集理论研究的基础上，通过分析现有的约简算法，提出一种基于依赖度的属性约简改进算法，改进后的算法可以求取属性的一个约简。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究，取得了以下主要成果：1形成了利用测井资料，结合室内岩芯测试结果，获取静动岩石力学参数的相关性特征，从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上，利用弯曲薄板作为力学模型，结合区块实际地质特征对背斜构造进行曲率分析，通过曲率与应力的关系，利用背斜构造不同部位的主曲率求得相应的构造应力值，从而建立起背斜储层的分层应力模型；对已有压裂资料的区块分层，形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数，建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素，分析造成高破裂压力的主要原因，综合利用岩石力学、弹性力学等知识，建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型，为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析，找出了各影响因素和岩石力学参数之间的关系，为从机理上解释酸化预处理降低破裂压力提供了理论基础；从微观元素的角度阐述了单矿物与酸反应的机理；并在此基础上，有效评价了各种矿物的酸敏感性，定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验，结合岩石力学三轴应力实验，系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合，在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上，建立了砂岩损伤力学模型，并对其进行验证，在此基础上定量计算酸化后的破裂压力，有效指导现场施工

Then the spatial index is constructed which includes not only the external approximate expression but also interior approximate expression of spatial object and is extended from tranditional index only with external approximate expression. The index structures of MR-tree and MRD-tree based on multi-approximate expression are set up with the prototype index of R-tree, and the relevant algorithms about the index of insertion, deletion and search are provided. Then, the efficiencies of constructing index based on the multi-approximate expression and window range query are analysised and compared. In addition, the several algorithms and efficiency of soving the maximum enclosed circle and maximum enclosed rectangle are discussed and analyzed during constructing index based on multi-approximate expression.

首先，论文讨论了空间数据的特点、空间数据库的关键技术以及空间对象间的拓扑、距离以及方向关系，分析了空间对象的外部和内部近似表达，然后将传统索引中只利用空间对象的外部近似扩展为既有空间对象的外部近似又有空间对象的内部近似，即以空间对象的多重近似来构建索引，并以R-tree为索引原型构建基于多重近似的MR-tree和MRD-tree索引结构，然后给出了相关索引的插入、删除及查找算法，并通过实验比较分析了基于多重近似索引与基于外部近似索引的构建效率及窗口范围查询效率。

The investment of IT is propelled mainly by IT engineers, so they mainly rest on technique, barely rest on economic. Even they rested on economic, system analysis are limited in qualitative and recapitulative and dispersive targets and did not formulate a set of systematic and integrated target system as reference or evaluation basis.

由于IT项目的投资实施主要是由主导信息技术的IT专业人员推动的，因此以往的研究往往把主要精力放在技术评价和实施上，但对其经济评价的探讨有所忽略，即使进行这方面的分析，大多也停留在几个定性的、概括性的、分散的指标上，并没有形成一套系统的、完整的指标体系和相应有效的评价方法。

March is azalea season, the streets of the "safety island" to open all over the azaleas, by the spring of infection, the ah Qian also set Mailiaohaoduo azalea, on the balcony, living room on a small table, On their own bedroom, of course, will never lose sight of the gold micro-bedroom, which she considers himself a better look at the complex valve foreign rhododendron - pink trimmed with white edges, seems to be a delicate drop to the water.

三月是杜鹃花的季节，街上的"安全岛"上开遍了杜鹃花，受了这春天的感染，金啊倩也买了好多盘杜鹃，放在阳台上，放在客厅小茶几上，放在自己的卧室里，当然，也绝不会忽略金微的卧室，她把其中一盘自己认为最好看的复瓣洋杜鹃——粉红色镶着白边，娇嫩得似乎可以滴出水来。

Objective: To investigate the effects of sulindac on the growth and motility of ovarian cancer cell SKOV3 and its involved mechanism. Methods: In order to detect the effects of sulindac on cultured SKOV3, sulindac with different concentration and untreated control were set up. The changes in morphology of SKOV3 were observed by phase contrast microscopy. MTT colorimetric assay was used to study the effects of sulindac on SKOV3 cell growth. Motility of SKOV3 was determined by scarification assay.

目的：研究舒林酸对卵巢癌SKOV3细胞的生长和细胞运动的影响以及对基质金属蛋白酶2（MMP2）、环氧合酶-2(COX-2)表达的影响：方法：将不同浓度的舒林酸加入培养液中观察其对SKOV3细胞形态的影响，采用MTT法观察舒林酸对SKOV3细胞生长的影响，通过划痕试验观察舒林酸对SKOV3细胞运动的影响，利用免疫细胞化学方法研究舒林酸对SKOV3细胞MMP2、COX-2表达的影响。

Bob lives together since childhood with Harker is adding the iris town, was the Harker childhood's playmate, the stature is not high, the hair from was born curls the volume, the eye was very big, the skin was very white, always likes putting on the suspenders trousers' his stature not to be high actually has the keen skill, the present is the brave warrior number operates the rudder, raised casually in here, the brave warrior number was their pirate ship, was also their family, in here, had the partner billy always to put on the identical set of western-style clothes, not the big bow tie, he was very actually graceful, high stature, fair skin, beautiful blue color eye, high bridge of the nose, will smile will let the human remember the fine thing, he will have gentleman's quiet and tasteful, also will have free man's profligate being unable to restrain, no matter which young lady let perhaps the woman looks could be infatuated with his -- him to be skilled in the seacraft, could precise draw each sea area the sailing chart, he was the brave warrior number navigation teacher, partner Du duly, the braid has covered entirely on his head, his eye a little looked like a bean, both hands is not big, actually could make compared to imperial palace delicacy food, what was worth mentioning, he was a thin person -- also has the partner to love Milly, he was Bob's younger sister, beautifulLong curl, big and attractive brown eye, long, but curls the eyelash, the beautiful skin, the beautiful beautiful fascinating' winsome's stature dances lightly in the sea!

鲍比从小和哈克一起生活在加芝镇，是哈克小时候的玩伴，个子不高，头发从出生来就卷卷的，眼睛很大，皮肤很白，总是爱穿背带裤的他个子不高却拥有灵敏的身手，现在是勇士号的掌舵者，随便在这里提一下，勇士号是他们的海盗船，也是他们的家，在这里，有伙伴比利总是穿着同一套西服，却不大领结，他很帅，高高的个子，白皙的皮肤，美丽的蓝色眼睛，高高的鼻梁，笑起来就会让人想起美好的东西，他有绅士的幽雅，又有自由者的放荡不禁，不管让哪个小姐或是妇人看了都会迷上他——他精通航海术，能够精确的绘出各个海域的航海图，他是勇士号的航海师，伙伴杜杜利，辫子布满了他的头上，他的眼睛有点像一颗豆，双手不大，却能做出比皇宫更美味的食物，值得一提的是，他是个瘦子——还有伙伴爱米利，他是鲍比的妹妹，美丽的长卷发，大而漂亮棕色的眼睛，长而卷的睫毛，美丽的皮肤，美丽婀娜的身材在大海中翩翩起舞！

With the translation of Buddhist scriptures into Japan's gradual understanding of the "China" and began referring to the use of such air and sea in its master of poetry,"Ling-set","China is Taiwan's Yue Man sequence" of the sentence, of course, at that time "Shina language with a copy of the translators Buddhist usage, but is not common reason for this is has always been to China, said the Japanese usually morokoshi, tohn, and so on, these are the Japanese characters for" Don "the pronunciation Generally reflect the Chinese culture, especially culture of the Tang Dynasty of Japan's far-reaching impact on later Song, Yuan, Ming and Qing dynasties change, said Japan can not change China as "Don" habit did not change the Japanese Chinese culture of respect, admiration psychological. In 1713, Whitehead Arai from Edo shogunate orders, inquiries were drifting in Rome to talk too much about the history, a lot of opportunity to understand the world situation, a reference to China's "Kun Maps", Prepared for a title,"Song laid Introduction," in the world geography, history and more from his Department to listen to on the pronunciation of chi-na, to use katakana and that in the lower left-hand corner is attached to "Shina.

随着佛经的译入，日本逐渐了解"支那"所指并开始使用，如海空大师在其诗集《性灵集》中，有"支那台岳曼殊序"之句，当然，那时"支那一语带有模仿佛经译者的用法，但并不普遍，究其原因，主要是一直以来，日本人通常称中国为morokoshi、tohn等，这些都是日本人对汉字"唐"的读音，大体反映了中国文化，特别是唐朝文化对日本的深远影响，以致后来宋、元、明、清历代更迭，都无法更改日本人称中国为"唐"的习惯，也没改变日本人对中国文化崇敬、羡慕的心理。1713年，新井白石奉江户幕府之命，查询罗马的漂流者史多提，趁机了解了不少世界情势，参考了中国的《坤舆图说》，编写了一本题名为《宋览导言》的世界地理书，他把从史多提处听来的关于chi—na的读音，用片假名来表示并在左下角附以"支那字样。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。