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This paper, which focused on the structure optimization theory and method, has finished such studies as follows: The three dimension model has been built, which provide the necessary conditions for the building of the dynamics equivalent model. By the launch dynamics simulation, the loads of the key joints when the rocket is launched has been got, which provide the necessary data for the finite element analysis and the structure optimization. The finite element model of the excess weight parts of the rocket has been built, buy the finite element intension analysis of the model in two conditions, the displacement and the stress of the key points have been got, which make us know the distributing of the stress and the transmogrification of the part. To satisfy the intension and the precision design request and to decrease the weight of the part as many as possible, the part has been topology optimized by the structure optimization theory and method. After that, the new model has been analysis in structure and launch dynamics. The contrast of the character change of the old part and the new part and the influence on the rocket system have been studied.

本文以结构优化理论和方法为核心，主要做了以下工作：建立了某自行火箭炮全炮三维实体模型，为建立该火箭炮系统的动力学等效模型提供了必要条件，进行了发射动力学仿真，得到该火箭炮发射装置各关键连接部位在发射状态下的载荷，为有限元分析和结构优化提供了必需的数据；建立了该火箭炮发射装置超重部分的有限元模型，分两种工况，对模型进行了有限元强度分析，得出了关键部位的位移和应力值，对其的应力和变形分布有了具体的了解；运用结构优化的理论和方法，对该火箭炮发射装置超重部分进行了拓扑优化，使其在满足强度和精度的要求下尽可能多地减轻重量，对优化后得到的模型进行了结构分析和发射动力学分析，对比了该部件优化前后的特性变化以及对火箭炮系统的影响。

Sizes of tuyere raceway will directly affect the heat transter and mass transfer in the whole BF, the gas distributing at the bottom of BF and the charge falling proportioned.

风口回旋区的尺寸大小将直接影响高炉下部煤气的分布、上部炉料的均衡下降以及整个高炉内的传热传质过程。

Objective For reseaching the status of trisomy of chromosome21 Syndrome happening and distributing in Guangdong provice.

目的 了解广东地区临床一岁以内婴幼儿的21-三体综合征的发生及分布情况。

With the operation principles of Human-orientedness, Service-centeredness, and Pursuing Excellence, and the service tenors of Trustfulness, Profession and High Efficiency, plus the wide distributing network and all-around after-service system, the Apple Stereo is in pursuit of maximizing the social benefit, to serve APPLE, to serve the world

以人为本、以服务为中心、追求卓越的经营理念；诚信、专业、高效的服务宗旨；具备深度的销售网络和健全售后服务系统，苹果音响追求社会效益最大化，服务苹果、服务社会

By means of finite element method, we analyze the stress distributing and fatigue state of tube mill hollow shaft of some factory applied self-produce FE soft ANSYS, provide the bases for estimating working circumstance of tube mill of running state.

利用有限元分析方法，应用自制的有限元软件ANSYS程序，对某厂管磨机出料中空轴的应力分布及疲劳状态进行分析研究，从而为判断运行状态中管磨机的工况提供依据。

He stayed in his walk to watch a typesetter neatly distributing type.

100他停下脚步，望着一个排字工人利利索索地分字模。

For example, you could say "distributing free software for a fee"—that is unambiguous.

例如，你可以说"自由软件发行费用"－－这样就明确了。

But, the traditional technique that feed silk is to be aimed at board base the research of square perhaps unburnt brick, and to laminose base and abdomen board ultrathin close eventually model different base is in home is a blank, the uniformity that how solves its to distributing and the influence to function of protective broken bits remain the restricted segment that rare earth material uses.

但是，传统的喂丝技术都是针对板坯或者方坯的探究，而对于薄板坯以及腹板超薄的近终型异型坯在国内是一项空白，如何解决其分布的均匀性以及对保护渣性能的影响仍然是稀土材料应用的限制性环节。

They founded the American Bible Society and the American Tract Society, distributing millions of pieces of Christian literature. The American Sunday School Union came into being to educate unchurched children in the Bible.

他们成立了「美国圣经协会」和「美国福音传单协会」以传布百万计的基督教文学作品，成立了「美国主日学学会」以教导圣经给没有上教堂的孩子。

According to the case of billet heating in a regenerative type heating furnace, the temperature distributing of billet about upper surface, undersurface and center surface in length and width is studied by computational fluid dynamicsin this article, and the questions of billet such as different temperature of upper surface and undersurface, the higher temperature of foursquare margin and the lower temperature of tapping orifice are put forward.

中文摘要：借助CFD仿真手段，模拟蓄热式加热炉内钢坯加热的实际状况，研究了钢坯长度、宽度方向上下表面和中心温度的温度分布，提出钢坯存在上下温差、四角边缘温度高和靠近出钢口钢坯温度低等问题。

The second is to cut a mere 100 calories from your diet , which is the equivalent of a tablespoon of butter.

第二个就是从你的饮食中减少一百卡路里，只是相当于一大汤匙的黄油。

This is where the Rorschach test comes in.

现在，罗氏测试就出现了。