查询词典 materials
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Mesoporous zincum sulfide materials have the unique character of photoelectricity, with nicer applying foreground in photocatalysis、photoconducting device、photochromic materials、electrechromic materials and so on .
硫化锌介孔材料具有独特的光电性质,在光催化、光电器件、光致变色材料、电致变色材料等方面展示良好的应用前景。
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Moreover, this paper makes an effort in incorporating theCosserat theory in the VCFEM for the elastic-plastic analysis of heterogeneous materialsbased on the PVP. The chapters are divided as follows: In Chapter 1, the author summarizes the study on the equivalent mechanics properties ofheterogeneous materials (including the development of the universal relationship which isirrelevant to the micro structure, the discussion of the limitations of the effective moduli, thecomputation of the effective properties of heterogeneous materials with the micromechanicsmethod and the FEM, and the equivalence of the heterogeneous micropolar materials) and thepresentation, the evolution, the corresponding numerical studies of the Cosserat model and itsapplications in engineering.
本文基于参数变分原理,构建了Cosserat体弹塑性有限元分析模型并用于求解应力集中和应变局部化问题;利用Voronoi有限元法提出了适用于非均质材料宏观弹塑性性能计算的参数二次规划算法;进一步将Cosserat模型应用到Voronoi有限元法中,提出了基于Cosserat理论的Voronoi杂交有限元法,并采用参数变分原理进行新模型的分析计算。
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In the second part, the current-voltage characteristics of the sensors were measured, their charge ionic mobilities were measured with polar inversion method and their ionic numbers were computed. It has found that ionization effect of some binding ions against a critical humidity took place in switchable humidity-sensitive materials, the effect is that some binding ions in materials turn into free ions when a given ambient humidity is reached called a critical humidity, avalanching conduct electricity occurs in materials.
在第二部分中,测试了高分子电阻型湿敏元件和开关型湿敏元件的伏—安特性,并用极性反转法测试了其导电离子的迁移率以及计算了相关的导电离子数目,发现了开关型湿敏元件的束缚离子的最小湿度电离效应:当环境湿度达到或者大于一特定湿度时,这一特定湿度称之为最小湿度,材料中某些束缚离子才电离成自由的导电离子,形成雪崩式导电。
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The production of new building wall decorative paint system, the surface of wood furniture, decorative paints, waterproofing materials, new energy-efficient insulation materials,·á, PE paint, distempers Mastics, such as 36 series more than 280 various products, the accumulation of construction around the world operating experience to for large and medium-sized professional advanced communities, the residential community, hotels, commercial buildings, such as building advanced paint outdoor decoration design, painting the construction-oriented use of the internationalization of modern enterprise management mode and operating the new franchise format to "create a new type of Chinese building materials industry aircraft carrier,"the goal of efforts to move forward.
生产新型建筑墙面装饰漆体系、木质家具表面装饰漆、防水材料、新型节能保温材料、防火漆、 PE 漆、硝基漆等 36 个系列 280 余各产品,积累世界各地经营施工经验,以专业进行大中型高级社区、住宅小区、酒店、商厦等建筑的室外高级涂料装饰设计、涂装施工为主导,采用国际化的现代企业管理模式和特许连锁经营新型业态,向&创建中国新型建材行业的航空母舰&的目标努力前进。
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This kind of general structural intercalation complex materials have three obvious characteristics: i Conditions of intercalation reaction are wild in room temperature, water or ethanol solution usually, ii we can process molecule design of host for increasing selectivity to guest molecules in order to prepare general structural intercalation complex materials, iii we can obtain all kinds of applied purpose complex materials by intercalating different functional guests.
这类特殊结构的复合材料具有三个显著特点:第1,制备条件温和,通常在室温、水或醇等溶液中进行;第2,通过对主体分子的设计,提高对客体分子的选择性,可以得到预先设计分子结构的复合材料;第3,通过对一些功能性客体分子进行插层组装,可以得到具有光、电、磁等结构新颖的复合材料。
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The earth is a complicated system, and it has been continuously moving differentiating and evolving since it had been formed. Not only has the earth layering structure, but it has vertical movement of materials. The movement is prompted by the mechanism of force and heat of the centrifugal force to be formed by the rotation and revolution of the earth, and difference of temperature, pressure, density, viscosity and velocity in the between core and mantle, and radioactive heat, et al. The expressive means of the mechanism of force and heat are the precesses of mantle plume and mantle fluid. Not only are ore-materials of core and mantle carried directly into crust, but ore-materials of crust are activated and accumulated into proper location by the mantle fluid having the supercritical nature.
地球是一个复杂的系统,自形成以来,一直处于不停地运动、分异和演化过程;它不仅存在着圈层结构,而且伴随其自转和公转的离心力,以及核幔间的温度差、压力差、密度差、粘度差、速度差和放射性蜕变热等动热机制,同时存在着以地幔柱和地幔流体作用方式的物质垂向运动;这一过程,不仅直接向地壳带入核幔成矿物质,而且通过流体自身的超临界性质,将沿途活化已有初步富集的成矿物质转移至地壳适宜部位集中成矿。
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The technology also couples with the process of carbon-containing materials coking and calcium-containing materials calcining, preheats the materials to 500-1500 DEG C utilizing the combustion of by-products CO of the carbide preparation and the assistant fuel, thereby further reducing the oxygen and energy consumption of the carbide preparation.
该工艺还与含炭原料焦化和含钙原料煅烧过程耦合,利用电石生产副产物CO以及辅助燃料的燃烧将原料预热至500-1500℃,进一步降低电石生产氧耗及工艺能耗。
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In North Tibet, the advanced subduction plate started to break off, which resulted in mixture of the crust materials and mantle materials, and formed the source region of richening molten materials. The large-scale volcanic activity appeared in the central-north part of the plateau.
高原北部,先行俯冲板片发生断离,其地壳物质与地幔物质混合,从而形成板内富集熔体的源区,并在高原中、北部形成大规模的火山岩。
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The plate previously subduced had started to break off, which resulted in its crust materials and mantle materials being mixed up, and formed the source region of richening molten materials. The large-scale magma activity appeared in the two blocks of Himalayan and Lhas-Gangdese.
先行俯冲板片发生断离,其地壳物质与地幔物质混合,从而形成板内富集熔体的源区,并在喜马拉雅—拉萨块体内形成了大规模的岩浆活动。
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The big one is to get students involved in producing materials also vetting materials also adding elaboration to materials.
只有到这样一天,当你可以自学,或者其它人可以用这些教材教你的时候,这个项目的任务才算完成。
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。