制造方法

Results show that digital simulation with the method features rapid model establishment, significant reduction of node and unit numbers, low calculation cost and accurate results. At the same time, defect that the stress distribution on composing plate and reinforced plate of the hoist boom can be reflected in finite element model by this method is pointed out All these provides valuable reference for the design and manufacture of hoist booms.

结果表明：用此方法进行数值模拟，建模速度快，节点及单元数大大减少，节约了计算成本，结果准确；同时指出这种方法建立有限元模型不能反映吊臂组成板和加强板应力分布的缺点，可为吊臂的设计制造提供有价值的参考。

As the heat-resistant alloy machining difficult, complex shape parts, or can not be so difficult to use other methods of manufacture, therefore, need to find a new precision of the molding process, they have been handed down from ancient lost wax casting, through the material and Technological improvements, modern methods of Investment Casting Technology in Ancient on the basis of access to important development.

由于耐热合金材料难于机械加工，零件形状复杂，以致不能或难于用其它方法制造，因此，需要寻找一种新的精密的成型工艺，于是借鉴古代流传下来的失蜡精密铸造，经过对材料和工艺的改进，现代熔模精密铸造方法在古代工艺的基础上获得重要的发展。

This design is the design of the belt conveyer, concentrate on low manufacturing costs, simple structure and reliable design which have adopted enumerated data and the design method of advanced belt conveyers while adopting design data and the design method of the belt conveyer of tradition.

摘要本设计为带式输送机的设计，以低制造成本、结构简便、安全可靠为设计宗旨，在采用传统的带式输送机的设计方法、设计数据的同时采用了部分先进的新型带式输送机的计算方法及计算数据。

These features, along with high-precision processing technologies have helped to miniaturise these products. The micropump is 6.0mm in diameter and 24.0mm in length, the microvalve measures 3.5mm in diameter and 10.3mm in length. The products are small but ensure high functionality by incorporating fluid, structure and magnetic field analysis simulations. Development will contribute to enhanced miniaturisation, an indispensable prerequisite for portable device fuel cells. Through the optimal design of diaphragm operations, valve configuration to prevent fluid backflow, materials and layout, Alps has achieved the effective control of larger amounts of fluid in a smaller chassis for its micropump. The unit also employs low-voltage electromagnetic drive systems, which contribute to easy control and fuel cell system engineering.

这 2002：机床，入世是挑战更是机遇专家指出要加大我国数控机床研发力度加快普及型数控机床的发展漫话中国机床制造业的服务竞争中国铣床和加工中心市场的现状和展望国内外车床的技术水平和发展方向世界加工中心的生产、需求和发展动向国内外机床发展趋势世界数控系统发展趋势切削加工技术和数控机床的发展现代机床产品技术发展趋势我国高速加工技术现状及发展趋势利用先进制造技术提升汽车活塞加工水平瓶盖及瓶口模具上特殊螺纹的数控车削深孔的螺纹加工数控车床螺纹切削方法分析与应用磨削蜗杆砂轮的修整精密零件多台阶面磨削的新方法曲轴连杆颈的跟踪磨削工艺

The traditional approach has been to use the gas itself in the cell—and that is the approach taken by the world's carmakers in their so-far not very successful attempts to make a commercial fuel-cell-driven car.

传统的方法是在电池中使用气体——这也是全球汽车制造商在至今为止不太成功的商用燃料电池驱动汽车制造过程中采用的方法。

They are created using the same basic method as golems, but at a much larger scale.

制造他们的方法与造魔像的基础方法相同，但比例要大得多。

Towards the close of 1815 a man, a stranger, had established himself in the town, and had been inspired with the idea of substituting, in this manufacture, gum-lac for resin, and, for bracelets in particular, slides of sheet-iron simply laid together, for slides of soldered sheet-iron.

一八一五年年底有一个人，一个大家不认识的人，来住在这城里，他想到在制造中用漆胶代替松胶，特别在手镯方面，他在做底圈时，采用只把两头靠拢的方法代替那种两头连接焊死的方法。

Key approaches in the construct tool including:① knowledge bases integrality checking models,②knowledge base maintenance instructing templets,③ process planning parameter language description method,④ object-oriented manufacturing resource bases operating method.

文章给出了知识库完备性检验的模型，介绍了基于此引导模板的知识库维护方式；提出了一种参数化工艺规程语言描述方法；分析了面向对象的制造资源库的操作方法。

The complexity of bodywork decides variety of it's error. The station and primary factor which cause error is inconstant change and using correlation analysis can find out the primary factor. With an project given, the theory of correlation analysis for dimension variation of bodywork is discussed through correlation analysis and the layer structure of the bodywork,the state in which the error happened can be found out. How to use eigenva...

车体装焊的复杂性决定了误差产生的多因素性，车体制造过程中产生误差的工位和主要因素是不断变化的，采用相关性分析方法从众多的误差根源中准确地发现最主要的误差源；结合工程实践，论述了车体尺寸波动的相关性分析方法的原理，根据测量点的相关性分析和车体焊接工艺的层次结构，可准确地找到产生车体尺寸误差的工位；讨论了如何利用相关系数矩阵的特征值和相应的特征向量判断尺寸波动的模式，指出测量数据的波动主要按最大特征值所对应的特征向量方式波动，引起这种波动的原因是车体误差产生的主要原因，应重点采取措施加以控制；提出了应用计算机进行相关性分析的解决方案。

As a special micro-power source, thermoelectric micro-generator is of interest for its applications in Micro-Electro-Mechanical Systems. Electrochemical deposition method took the advantage at the fabrication of thermoelectric material in micrometer scale. In this paper, the detailed reduction processes of Bi~(3+) and HTeO~(2+) were studied for the first time. And thermoelectric nanowires were also prepared by electrochemical deposition. On the basic study of thermoelectric material, detailed exploration was made to the design and fabrication process of thermoelectric micro-generator.

作为一种特殊的微动力能源，微型温差发电器在微机电系统中的应用前景引起了人们极大的兴趣，电化学沉积方法在制备微米级尺寸的温差电材料方面具有显著的优势，本文对Bi~(3+)和HTeO~(2+)离子的电化学还原过程展开了详细的研究，并尝试了利用电化学沉积方法制备Bi_2Te_3纳米线材料，在温差电材料研究的基础上，对微型温差发电器的结构设计和制造过程进行了详细的探讨。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。