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The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly by adding crystal seeds containing MCM-22 precursors in the synthetic process of the three-phase intergrowth molecular sieve for producing the three-phase intergrowth molecular sieve, wherein the proportion of intergrowth phases is adjustable, and the synthesized three-phase intergrowth molecular sieve includes compositions having the following mole relation: nSiO2:Al2O3, where n is between 4 and 400 in the formula, wherein the three-phase intergrowth molecular sieve has more than two phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 13.58+-0.1, 12.35+-0.1, 11.21+-0.1, 10.04+-0.1, 9.09+-0.1, 8.83+-0.1, 6.6+-0.1, 6.17+-0.1, 4.5+-0.1, 4.09+-0.05, 3.98+-0.05, 3.86+-0.05, 3.76+-0.04, 3.64+-0.04, 3.47+-0.05, 3.38+-0.02, 3.29+-0.04, 3.19+-0.05 and 2.88+-0.1 angstroms, thereby solving the problems properly.
本发明通过采用在三相共生分子筛合成过程中,加入含MCM-22前驱体的晶种,控制好分子筛的成核和生长过程,制备出了一种三相共生分子筛,其中共生物相比例可调,合成的三相共生分子筛包括以下摩尔关系的组成:nSiO2∶Al2O3,式中n=4~400,其中所述三相共生分子筛具有两种以上的物相,其XRD衍射图谱在13.58±0.1,12.35±0.1,11.21±0.1,10.04±0.1,9.09±0.1,8.83±0.1,6.6±0.1,6.17±0.1,4.5±0.1,4.09±0.05,3.98±0.05,3.86±0.05,3.76±0.04,3.64±0.04,3.47±0.05,3.38±0.02,3.29±0.04,3.19±0.05,2.88±0.1埃处有d-间距最大值的技术方案,较好地解决了上述问题。
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The state-of-the-art of chemical process and equipment intensificationtechniques is reviewed. A novel concept of compact industrial furnace isproposed, in which tube with static mixer for partly intensification is determined. 2 A virtual engineering scale-up approach is put forward. The key points toimprove the scaling-up efficiency include two tools: one is rapid generationtechniques for computational models in which a re-use library is built, the otheris rapid prototyping manufacturing, employed for rapid generation forexperimental models.3 The tube is the key component for industrial furnace. Material microstructure,high temperature strength, and casting process of the tube with static mixer arediscussed as compared with those of traditional tube. Some special features ofthe static mixer tube are demonstrated.4 An evaluation method of velocity-based disturbance effect of fluid field wasproposed.
主要内容包括: 1、总结了化工过程强化技术的现状和强化研究的途径,提出了紧凑式工业炉的概念,确定用静态混合式炉管进行局部强化。2、提出了静态混合式炉管应用的虚拟工程放大研究方法,指出研究中提高效率的关键是计算模型快速生成技术和实验模型的快速原型制造。3、对工业炉的关键部位——炉管,从材料成分、强度、制造等方面对静态混合式炉管的设计、制造进行了分析,与常规炉管对比,说明了静态混合式炉管的独特性和要求。4、应用快速原型方法,迅速、准确地得到了符合精度、强度要求的静态混合式炉管模型,产品的精度和强度完全符合要求,提高了模型制造效率。5、应用计算流体动力学方法,进行静态混合式炉管的工程放大研究。
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Formal Theory of context can be used in many areas of AI: Using the formal notion of context in representation and reasoning not only embodies context-dependency of knowledge, but also make representations simpler. Since the reasoning process can be localized, the efficiency and openness of systems are both improved. In Natural Language Understanding systems, formal theories of context provide a framework for representing ambiguity and make the process of disambiguating easier.
形式化的context概念可以用于AI的许多领域:在知识表示和推理中使用形式化的context概念,不仅能体现知识对context的依赖性;而且表示结果简洁,可以局部化推理过程,提高系统效率,建立开放的AI系统;context形式理论为语言歧义性的表示提供了一个形式框架并使消歧过程更方便;context决定了中肯性标准,从而有望改善智能信息检索系统的性能。
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This thesis discusses firstly the IGMP, describes the specification of the protocol and explains the differences between the three different versions of protocol. Then the RPF rule used by the router to forward multicast packets and the multicast forwarding tree are discussed. The process of building SPT and RPT is also illustrated. In this thesis, we also discuss the mechanism of Flooding and Pruning in Dense-Mode multicast routing protocol and the process of switch from RPT to SPT in Sparse-Mode routing protocol.
本论文讨论了实现IP组播的IGMP协议,对IGMP协议的协议规范进行了描述,并对IGMP三个版本的不同点作了详细说明;讨论了进行组播数据包进行转发的RPF基本原理、组播转发树的类型,并对SPT树和RPT树的建立过程进行了探讨;并分别对密集模式组播路由协议的扩散和剪枝机制、稀疏模式组播路由协议中的RPT树到SPT树的切换过程进行了详细的探讨。
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In the finite element analysis, by adding individual beam elements to model the connector between top joints and chords in finite element model, based on the experimental model, the factors affecting the shape forming process of dome, such as the bending stiffness of duckbilled connector and the size of top joints, can be taken into account; A whole and continuous analysis method is put forward for solving the question of applying the member forces produced in the shape forming process to the finite element models of load analysis.
有限元分析中,采用节点增设独立梁单元的方法,研究了鸭嘴半刚性连接和上弦节点域大小对穹顶成形过程的影响;提出了统一连续的分析方法,很好的解决了成形初应力向穹顶承载力有限元分析模型中的施加问题。
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In the early industrialized countries of Europe the process of industrialization—with all the farreaching changes in social patterns that followed—was spread over nearly a century,whereas nowadays a developing nation may undergo the same process in a decade or so.
在先期实现工业化的欧洲国家中,其工业化进程以及随之而来的各种深刻的社会结构变革,持续了大约一个世纪之久,而如今一个发展中国家在十年左右就可能完成这个过程。
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In the early industrialized countries of Europe the process of industrialization-with all the farreaching changes in social patterns that followed-was spread over nearly a century, whereas nowadays a developing nation may undergo the same process in a decade or so.
的定语。在先期实现工业化的欧洲国家里,其工业化进程以及随之而来的各种深刻的社会结构变革持续了大约一个世纪,而如今一个发展中国家在 10 年左右的时间内就可以完成同样的过程。
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For Example,(4) In the early industrialized countries of Europe the process of industrialization——with all the farreaching changes in social patterns that followed——was spread over nearly a century, whereas nowadays a developing nation may undergo the same process in a decade or so.
4在先期实现工业化的欧洲国家中,其工业化进程以及随之而来的各种深刻的社会结构变革,持续了大约一世纪之久,而如今一个发展中国家在10年左右就可能完成这个过程。
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I read the following in one of the mouthpieces of the government - a popular Chinese-language newspaper. Translated as follows:-IN THE PROCESS OF NATION-BUILDING- Every country, IN THE PROCESS OF NATION-BUILDING, would inevitably commit atrocities
我在知名的政府喉舌的一份中文报纸上看过一句话,翻译如下:在建设国家的过程中——任何一个国家,在建设国家的过程中,都势必会犯下罪行。
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This paper introduces the studies of Gerhard Ertl, who is awarded the Nobel Prize in Chemistry 2007, in adsorption of hydrogen on metal surfaces, the mechanism of catalytic reaction in Haber- Bosch process for synthesis of ammonia, and the process of catalytic oxidation of CO.
格哈德·埃特尔的重要贡献主要有3方面:(1)解决了氢原子是如何在Pd、Pt和Ni等金属表面组织排列的问题;(2)对哈伯一博施法合成氨反应催化机理的研究;(3)对C催化氧化的研究及非线性动力学理论的建立。1 氢在金属表面吸附的研究萨巴蒂埃因发现精细金属颗粒催化有机物加氢的方法而获1912年度诺贝尔化学奖。
- 推荐网络例句
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I can not make it blossom and suits me
我不能让树为我开花
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When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.
当温度高于 80 °C 左右时,滚道或滚动元件褪色是很常见的特征。
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The lawyer's case blew up because he had no proof.
律师的辩护失败,因为他没有证据。