查询词典 building material
- 与 building material 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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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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 stateinformatation, 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 new office address is a landmark address in the core of downtown Vancouver high-rise bank buildings, located on Floor 9th in Canada's National Bank Building ,which is far from the Vancouver Burrard Sky Train Station 1 minute walk. In addition, within 1-3 minutes' walk of the seaside port, where is gathered the independent bank office of high-rise buildings (from 17 to over 40 floors of high-rise buildings):TD Toronto-Dominion Bank of Canada office building(4 Bentall Tower ;Office building in Bank of Montreal, Canada(3 Bentall); National Bank of Canada office building(2 Bentall Tower;Business Development Bank of Canada Building(1 Bentall Tower; HSBC Bank Canada Building;Canadian Imperial Bank Office Building; Bank of Nova Scotia Office Building;Telecom Communications Group, Bell Canada Building(5 Bentall Towerand Royal Bank of Canada Office building.
新办公地址是温哥华市中心最核心的银行高楼建筑群的地标地址,位于加拿大国家银行大楼内的9楼,离温哥华市中心Burrard 地铁站步行1分钟,另外1-3分钟步行方圆内的海边口,集中各独立的银行办公大楼高楼群(从17-40多层的高楼群):加拿大TD 道明银行办公大楼(4 Bentall Tower ;加拿大蒙特利尔办公大楼(3 Bentall);加拿大国家银行办公大楼(2 Bentall Tower;加拿大商业发展银行大楼(1 Bentall Tower;加拿大汇丰银行大楼;加拿大帝国银行办公大楼;加拿大丰业银行办公大楼;加拿大贝尔电讯通讯公司大楼(5 Bentall Tower;加拿大皇家银行办公大楼。
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Drawing lessons from domestic and international forerunner, in the controlling detailed plan a series of index signs is put forward. It consists of boundary lines of roads, land usage, building line, building maximum height, H/D, frontage building height, building form, building color, building style, street texture, plane of maximum building height, building ratio along the street frontage, open space, building interval, roof outline, etc. They have different effects on the five interfaces of street space. By scientific controlling and guidance, it will guarantee the formation of the basic frame of street space that is full of humanism and emotion.
同时通过对国内外先进控制经验的借鉴,在控制性详细规划阶段提出了一套完整的控制指标体系:道路红线、用地性质、建筑后退道路红线、建筑极限高度、街道高宽比、沿街建筑高度、建筑形式、建筑色彩、建筑风格、街道空间质感、高层建筑斜线控制、沿街建筑贴线建造要求、开放空间要求、建筑间距、屋顶轮廓线等,期望通过对街道空间五界面的科学的控制和引导,保证人性化、情感化街道空间基本框架的形成。
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2Nd, thorough analysis: The Earth may say is an extremely marvelous thermonuclear reactor, when the earth interior pressure achieved certain critical, in the Earth material may decay the nuclear matter is called as the thermonuclear material, can have the thermonuclear reaction, thus has the huge energy, then the melted partial materials, form the rock magma are the liquid state materials, this response stratification plane is possibly many stratification planes, first possibly is located between the earth's crust and the mantle, upward next two transfers, displays for the light density material diastrophism as well as density upper mantle material phenomena and so on solidification; Under second possibly is located between the mantle and the core, the pressure is more formidable, causes not not easily to have the thermonuclear reaction thermonuclear material to have the response, forms the relative quite stable liquefied material level, simultaneously is upward next two transfers, forms the counter-flow phenomenon which the high density under mantle as well as the high density core material contact liquefies and is far away cools; These material periodicity regular movements and so on convection as well as Earth polar axis rotation are possibly the basic source powers which the terrestrial magnetic field produces.
深入剖析:地球可以说是一个非常奇妙的热核反应堆,当地球内部的压力达到一定的临界,地球物质中可衰变的核物质统称为热核物质,就会发生热核反应,从而产生巨大的能量,进而融化部分物质,形成岩浆即液态物质,这个反应层面可能是多个层面,第一层可能位于地壳与地幔之间,向上下两边对流,表现为轻密度物质的地壳运动以及中密度上地幔物质的固化等现象;第二层可能位于下地幔与地核之间,压力更为强大,引起不易发生热核反应的热核物质发生反应,形成相对比较稳定的液化物质层,同时向上下两边对流,形成中高密度的下地幔以及高密度地核物质的接触液化和远离冷却的对流现象;这些对流以及地球极轴自转等物质周期性规律性运动可能是地球磁场产生的根本源动力。
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A method of production of a reduction resistant dielectric ceramic composition having a superior low frequency dielectric characteristic and further improved in accelerated lifetime of insulation resistance, specifically a method of production of a dielectric ceramic composition containing a main component including a dielectric oxide of a specific composition, a first subcomponent including a V oxide, a second subcomponent containing an Al oxide, a third subcomponent containing an Mn oxide, and a fourth subcomponent containing a specific sintering aid in a specific ratio, including a step of mixing at least part of the materials of the subcomponents excluding one or both of at least the material of the third subcomponent and material of the fourth subcomponent with the starting materials prepared for obtaining the material of the main component to prepare the pre-reaction material, a step of causing the prepared pre-reaction material to react to obtain a reacted material, and a step of mixing the materials of the subcomponents excluded when preparing the pre-reaction material with the obtained reacted material to obtain a dielectric ceramic composition.
本发明提供一种介电陶瓷组合物的制造方法,其中介电陶瓷组合物以特定的比例含有如下成分:含有特定组成的介电体氧化物的主成分,该主成分可以提供具有优异的低频率介电特性的、绝缘电阻的加速寿命进一步提高的耐还原性介电陶瓷组合物的制造方法,含有V氧化物的第1副成分,含有Al氧化物的第2副成分,含有Mn氧化物的第3副成分,以及含有特定的烧结助剂的第4副成分;该方法包含如下工序:将至少除去第3副成分的原料和第4副成分的原料的一种或两种的其它副成分原料的至少一部分,与为了得到主成分原料而准备的起始原料混合,准备反应前原料的工序;使准备的反应前原料反应而得到反应后原料的工序;以及在所得的反应后原料中,混合在准备反应前原料时除去的副成分原料,得到介电陶瓷组合物原料的工序。
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The construction of the Beijing Urban and Rural Trade Center, China Architectural Culture Center, the Ministry of National Grid Control Centre, Beijing Zaojun Miao telecommunications building, Fu Kai building, the National Computer Network Center, the Central Party School, residential buildings, Wanliu Everbright Garden, and Snow Road Plant, Shanghai Senmao Building, the building Huaneng Shanghai, Shenzhen SEG Plaza, Lushan buildings, and Wang buildings, Huaneng Shantou Power Plant, Tangshan Phoenix Building, Shijiazhuang Zhongshan Building, Hainan Petrochemical building, the Daya Bay Nuclear Power Station in Guangdong, Xiamen International Airport and other major projects.
承建了北京城乡贸易中心、中国建筑文化中心、电力部国家电网控制中心、北京市皂君庙电讯大楼、富凯大厦、国家计算机网络中心、中央党校住宅楼、万柳光大花园、和路雪厂房、上海森茂大厦、上海华能联合大厦、深圳赛格广场、庐山大厦、地王大厦、汕头华能电厂、唐山凤凰大厦、石家庄中山大厦、海南石化大厦、广东大亚湾核电站、厦门国际机场等大型工程。
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On the basics of briefly summarizing the research and application presents of building coatings and nano-composite building coatings in domestic and overseas, we presented a creative approach of modified exterior and interior building latex coatings applying inorganic nano-powders and its compound, systematically studied the effect of factors such as nano-material's category、additive capacity、dispersing method on the behavior of exterior building coating's weathering resistance、scratch resistance、water resistance、alkaline resistance and on the behavior of interior building coating's restraining bacterium、degrading all kinds of bad organic matter,and triumphantly developed nano-composite building latex coating.
本文在简要叙述国内外建筑涂料和纳米复合建筑涂料的应用研究现状的基础上,提出了使用无机纳米粉体及其复合材料改性建筑外墙乳胶漆的创新思路,系统地研究了纳米粉体材料的种类、添加量、分散方式等因素对外墙乳胶漆耐候性、耐洗刷性、耐水耐碱性等性能的影响,以及这些因素对内墙乳胶漆抗菌杀菌、降解有害有机物等性能的影响,成功地开发了纳米改性建筑外墙和内墙乳胶漆产品。
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Finally, the writer combined the paper with the request of our country"s current education development to the new period teaching material reforms, concern with the future of our country"s teaching material reforms of chemistry, put forward several suggestions about our country"s teaching material reforms of chemistry: The spirit of teaching material should return to human; teaching material target should more characterful, socializing and more popular; the developing in the flexibility of the teaching material contents ; teaching and learning method"s type in the book should be investigable, cooperant and interactional; teaching material"s diversification"s and modernizations trend etc.
最后,笔者结合目前我国教育发展对新时期教材改革的要求,关注于我国基础教育中的化学教材改革的未来,提出了对我国高中化学教材改革方向的几点展望:教材编制指导思想的&人本化&发展;教材教学目标中的素质化、社会化、大众化的转变;教材内容的弹性化发展;教材的教法、学法的探究式、合作式、互动式转变;教材载体的多元化、现代化趋势等等。
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In New York the 286-ft (87.2-m) Flatiron Building of 1902 was surpassed in 1904 by the 375-ft (115-m) Times Building ( renamed the Allied Chemical Building), the 468-ft (143-m) City Investing Company Building in Wall Street, the 612-ft (187-m) Singer Building (1908), the 700-ft (214-m) Metropolitan Tower (1909) and, in 1913, the 780-ft (232-m) Woolworth Building.
这些建筑分别是高375英尺(115米)的时代大厦(1904),(后来改名为联合化工制品大厦)。1908年在华尔街建造的高468英尺(143米)的城市投资公司大厦,高612 英尺(187米)的星尔大厦,以及700英尺(214米)的都市塔和780英尺高(232米)的Woll worth大厦。
- 相关中文对照歌词
- Boyfriend Material
- Muny
- Material Girl
- Living In The Material World
- Materialize!
- Wifey Material
- Material Girl
- Material Girl
- Big Spender
- Boyfriend Material (So Much For Love)
- 推荐网络例句
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The Porsche Owner: But it's my car!
可,这是我的车呀。
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LOX_83}{Oh, another bunch of wackos.
{LOX_83}{呃,又一群怪人。
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It is difficult to fit a suit on him because he is so irregularly built.
他的体形和常人不大相同,很难有合身的衣服。