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Abstract: In this paper,the problems of the window set-up,the forward receiving method by mirror and the way of side direction receiving ,when LDV is used to measure the velocity of water flow inside a circular tube,are discussed and some practical experi
中文意思:
文摘:使用二维激光多普勒测速仪(LDV)对圆管中水流进行测速时,对于窗口的设置、利用反射镜前向接收的方法和侧向接收方式等问题,本文进行了探讨,并总结了测量中的一些实际经验。


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Abstract: In this paper,the laser transformation hardening(LTH)system which used for Die and Mould and laser processing methods are introduced.The relationship between depth of hardening layer,wear resistance properties and laser hardening processing para 文摘:介绍了用于模具表面的激光强化加工系统和激光强化工艺方法,讨论了激光强化模具表面的硬化层深度和耐磨性能与激光强化工艺参数之间的关系,采用激光强化技术能大幅度提高模具的使用寿命。
Abstract: In this paper,the lawful metrological units were compared with the abrogated units in analytical chemistry,and the common mistakes in the application of the lawful metrological units were discussed.Some correct examples in the application of the 文摘:对分析化学领域中常见的法定计量单位与其对应的废弃形式进行了比较,指出了应用中常见的错误,并汇集了该领域中有关计量单位表述的正确范例。
Abstract: In this paper,the mathematics model of the heat exchange in the combustion chamber of the ceramic furnace was established.Influences of the insulation on heat exchange in combustion space of ceramic furnace was simulated. 文摘:本文建立了陶瓷窑炉火焰空间系统传热数学模型,根据该数学模型模拟了保温对火焰空间系统对物料传热的影响。
Abstract: In this paper,the pollution sources and the hazards of the pollutants in nitrotoluene production are briefly described,the various approaches for reducing and eliminating the pollution by adoption of cleaner production are outlined. 文摘:简介一硝基甲苯生产过程中污染物的产生和危害,概述了采用清洁生产技术减少和消除污染的各种途径。
Abstract: In this paper,the preparation of the catalysts for the oxidation of Fluorene to Fluoreone is studied.The influences of the dipping time,calcining temperature,calcining time and the air quantity during the calcination are discussed. 文摘:研究了用工业芴气相氧化制取芴酮的催化剂制作条件,考察了浸渍时间、煅烧温度、煅烧时间和煅烧空气量对催化剂制作的影响.
Abstract: In this paper,the problems of the window set-up,the forward receiving method by mirror and the way of side direction receiving ,when LDV is used to measure the velocity of water flow inside a circular tube,are discussed and some practical experi 文摘:使用二维激光多普勒测速仪(LDV)对圆管中水流进行测速时,对于窗口的设置、利用反射镜前向接收的方法和侧向接收方式等问题,本文进行了探讨,并总结了测量中的一些实际经验。
Abstract: In this paper,the reason arisen from the noise of the BX1 AC arc welder is analysed.For the main factor,moving core viberating,the measure to reduce the noise is advanced from three hands,inside and outside slide.The other measure is also advanc 文摘:对BX1系列交流弧焊机噪声产生的原因进行了分析,针对产生噪声的主要原因——动铁芯的振动,从三个方面、内外滑道分别提出了具体的降低措施,并对次要原因也提出了具体降低措施。
Abstract: In this paper,the ship structure is analyzed by using 3D overall structure finite element method and the longitudinal strength is calculated when the hydro-static bending moment,wave bending moment,horizontal bending moment and torsion moment ar 文摘:本文对3800箱集装箱船进行了整船有限元分析,计算了在设计静水弯矩、波浪弯矩、水平弯矩和扭矩作用下的船体总纵强度,并与基于薄壁梁扭转理论的总纵强度计算结果进行了比较,对两种方法的应用前景作出评论。
Abstract: In this paper,the significance of remote monitoring and fault diagnosis system for the pipe laying pump units in petroleum conveyance process is discussed.The communication principle and particular of remote monitoring and fault diagnosis system 文摘:论述了原油输运过程中的加压泵机组远程监测及故障诊断系统的意义,分析了输油泵机组远程监测及诊断系统的通信原理和特点,建立了实现该系统的硬件结构和软件体系,最后说明了采用该系统的优势。
Abstract: In this paper,the status quo factor characters of rural industry increase are analysed,and Cobby-Douglas functions are established.Factors involved are further analysed.Finally,suatainable development countermeasures are put forword. 文摘:首先分析了山东省农村工业增长的要素投入特点,用道格拉斯函数对山东省农村工业增长因素作了动态分析,提出了山东农村工业持续发展的对策。
Abstract: In this paper,the stress field in a long rectangle platen being upset(after bulge profile emerging)is resolved by mathmatic analytic metho d,the tension stress zones formed elliptic shape curves in upset are found thro ugh quantitative calculati 文摘:本文用数学解析法求解了矩形长板镦粗时(出现鼓肚)的应力场,定量计算出镦粗体内存在呈椭圆曲线的拉应力区,并得出拉应力区与镦粗基本参数的关系。
 
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