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This paper presents an IFMC CAD model that consits of a geometry model and a material model, in which the geometry space acts as a base space and the material space acts as a bundle space. In this CAD model, the geometry model is based on the non-manifold model. In addition, a half-face data sturucture, which is derived from the half-edge data structure with the non-manifold feature of IFMC taken into account, is adopted to represent the geometry and topology information of the component. For the material model of IFMC, this paper focuses on the FGM component representation firstly and present a simplex-subdivision based CAD data exchange format, in which the material information is represented as a (n-1) simplex and material distributing feature is represented by the interpolation on the simplex-subdivision. Based on those, a part-building orientation optimization algorithm and an adaptive slicing algorithm for FGM component are presented in the paper. For the IFMC material model, the IFMC material information representation is divided into a meso-scale and a macro-scale representation. In the meso-scale, a concept named parameterized periodic functional meso-structure is presented as a unique form to represent the FGM (the homogeneous materials are regarded as a special FGM), the composite and the functional meso-structure material. The model of PMS is a three-tuple that contains the space state informatation, the material parameter and the material meso-scale distribution feature. The macro-scale material information representation is similar to the FGM components by interpolation of the control parameter of the periodical functional meso-structure based on the simplex-subdivision. Through an example of manufacturing-oriented IFMC CAD data processing, it is proved that the IFMC CAD model and the material information representation and process method proposed in this paper can provide a reliable data support for IFMC digital concurrent design and manufacturing.
本文将理想材料零件CAD模型建立在以几何空间为底空间、以材料空间为丛空间的结构上,使用非流形几何模型作为理想材料零件几何拓扑模型的基础,并在半边数据结构基础上,针对理想材料零件的非流形特征局限内部边界上的特点,给出了一个半面数据结构来表述零件的几何拓扑信息;对于理想材料零件的材料模型,本文先从功能梯度材料零件的信息表述与CAD数据交换和处理入手,将材料信息表述为(n-1)维单纯形,然后通过对三维几何区域的单纯剖分,以插值的方式表述零件材料分布特征;在此基础上,根据功能梯度材料零件分层制造中对CAD数据处理的要求,给出了综合考虑零件几何特征与材料特征的生长方向优化算法和自适应切片算法;而对于文中所定义的理想材料零件,本文将其材料信息表述分解到细观和宏观两个尺度进行,首先给出了细观尺度上参数化的周期性功能细结构概念,以此来统一表述功能梯度材料(单质材料作为特殊的功能梯度材料看待)、复合材料和功能细结构材料;把周期性功能细结构模型化为一个包含空间状态信息、材料构成参数和材料细观分布特征参数的三元组,以表达零件的细观材料特征;对于零件宏观的材料变化特征,则同样在几何区域单纯剖分的基础上,通过对细观尺度上周期性功能细结构控制参数的插值来完成;通过理想材料零件CAD数据处理的算例,验证了本文中理想材料零件CAD模型及材料信息表述与处理方法完全可以为理想材料零件的数字化制造提供可靠的数据支持。
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The hospitalization insurance management organization is urged to establish the hospitalization insurance decision support system on the basis of the Data Warehouse.
医保管理机构迫切要求建立基于数据仓库的医保决策支持系统,来为医保政策的制定、调整和医保科学化管理提供有力支持。
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China will continue to support Africa in implementing the New Partnership for Africa's Development and in its effort to strengthen itself through unity, achieve peace and stability and economic revitalisation in the region and raise its international standing
中国将一如既往地支持非洲实施非洲发展新伙伴计划,支持非洲国家为加强联合自强、谋求地区和平稳定、实现经济振兴、提高国际地位所作的积极努力。
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China will continue to support Africa in implementing the New Partnership for Africa's Development and in its effort to strengthen itself through unity, achieve peace and stability and economic revitalisation in the region and raise its international standing.
中国将一如既往地支持非洲实施非洲发展新伙伴计划,支持非洲国家为加强联合自强、谋求地区和平稳定、实现经济振兴、提高国际地位所做的积极努力。
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China will continue to support Africa in implementing the New Partnership for Africas Development and in its effort to strengthen itself through unity, achieve peace and stability and economic revitalisation in the region and raise its international standing.
中国将一如既往地支持非洲实施非洲发展新伙伴计划,支持非洲国家为加强联合自强、谋求地区和平稳定、实现经济振兴、提高国际地位所做的积极努力。
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Chinawill continue to support Africa in implementing the New Partnership forAfrica's Development and in its effort to strengthen itself throughunity, achieve peace and stability and economic revitalisation in theregion and raise its international standing.
中国将一如既往地支持非洲实施非洲发展新伙伴计划,支持非洲国家为加强联合自强、谋求地区和平稳定、实现经济振兴、提高国际地位所作的积极努力。
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The agency focused on promoting and supporting foreign direct investment in the United States, the U.S. government's management of foreign direct investment promotion in the primary government agency whose main tasks are to establish contacts with overseas investors to support the state government investment promotion, and for the creation of international investment a favorable investment environment.
该机构专注于促进和支持在美的外国直接投资,是美国政府管理海外直接投资推广的首要政府机构,其主要工作包括与海外投资商建立联系,支持州政府的投资推广,并为国际投资创造有利的投资环境。
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Although the aforesaid sanction should clearly be subject to nullity on many counts, and was supporting and preserving open schism, and therefore it could have been declared to be essentially of no effect, null and invalid, without the need for any preceding formal citation, yet, from a great sense of caution, our same predecessor Julius, by a public edict -- which was to be fixed to the church doors of Milan, Asti and Pavia, since there was then no safe access to France -gave warning and summoned the prelates of France, the chapters of churches and monasteries, the parlements and the layfolk supporting them and making use of the said sanction, and each and all of the rest who were thinking that there was some advantage for them in the foregoing individually or collectively, to appear before him and the said council within a fixed period, which was then clearly stated, and to declare the reasons why the aforesaid sanction, and its corruptive and abusive effect in matters touching on the authority of the Roman church and the sacred canons, and on the violation of ecclesiastical liberty should not be declared null and invalid.
虽然上述制裁显然应受无效在许多方面,并支持和维护开放的分裂,因此,它可以被宣布为基本上没有影响,是完全无效的,而不需要任何前正式引文,但从高度的谨慎,我们同前任朱利,由公共法令-这是将固定在教堂大门米兰,阿斯提和帕维亚,因为当时没有任何安全进入法国了警告,并召见主教的法国,各章的教堂和修道院,在parlements和layfolk支持他们,并利用上述制裁,每个和所有其余谁被认为有一些优势,他们在上述单独或集体,到他面前,并说,安理会在固定期限内,然后明确规定,并宣布了上述原因的制裁,它的腐败和滥用影响的事项涉及的权威和罗马教会的神圣大炮,以及对违反教会自由不应被宣告无效。
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As a social association, BARDE can only develop and grow up with the support of each individual member, your support to BARDE will be the power for us to push the BARDE to develop forward to next new target
做为一个行业组织,BARDE只有依靠每一位会员的大力支持才能够发展和壮大,您对BARDE的支持将是我们推动BARDE向更高的目标迈进的最大动力
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MAG Industrial Automation Systems (Erlanger, Ky., USA) announced on March 2 that it will supply the first automated composites processing system ordered by the Russian aerospace industry as part of a new sale to Russia's United Aircraft Corp.
近日,美国美格工业自动化系统公司与俄罗斯联合飞机公司达成协议,将为其供应自动化复合材料处理系统设备,用以支持俄生产MS - 21商用中程客机。美在俄设立航空航天工业团队,逐步扩大其在俄的销售网络和服务支持。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。