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Abstract: The general magnetic fluid grinding methods and magnetic fluids used home and abroad have been reviewed. The current research work and development prospect are also exposed.
中文意思:
文摘:回顾了国内外常用的磁流研磨方法和采用的研磨流体,简述了磁流研磨领域的国内外研究概况及其发展前景。


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Abstract: The four configurations of RRP simple opened-chain have been analyzed.The accomplished method of kinematics analysis has been gived.It provides the fundament for optimization and accurate analysis of mechanisms. 文摘:深入分析了RRP单开链的四种装配构形,给出了其统一完整的运动分析方法,为机构选优及运动分析提供了依据。
Abstract: The free radical alkylation of pyridine with fatty acids in the presence of acidic solvent,a series of derivatives of α-monosubstitute prydine were synthesized using ammonium persulfate and silver nitrate as catalyst. 文摘:吡啶与脂肪酸在酸性环境中用过二硫酸铵和硝酸银催化,发生自由基烷基化反应,得到产物主要是α-单取代吡啶。
Abstract: The friction types and wear mechadism of high-Chromium cast iron composite is discussed.The experimental results show that this compositc pipeline has good economic benefit,applicability and popularization in coal separation medium pipeline. 文摘:从磨损类型和耐磨机理等方面,对高铬耐磨铸铁复合材料进行了探讨,试验结果和经济效益分析表明,这种高铬耐磨铸铁复合管对于选煤介质管路有良好的适用性和推广应用价值。
Abstract: The function expression for coefficient of pipeline's local head loss was presented through optimizing fitting to coefficient values listed in tables.The fitting accuracy is acceptable. 文摘:采用优化拟合法通过对图表中有关数值的拟合,给出了管道阀件阻力系数的函数表达式,具有较高的拟合精度。
Abstract: The function, topology, hardware and software methodes of the computer network in pivot of water conservancy was described.The general steps to construct the network was also gived briefly. 文摘:该文就一个水利枢纽的计算机网络的建设,描述了网络提供的功能、网络拓扑以及所采用的软硬件技术,简要介绍了网络建设的一般步骤方法。
Abstract: The general magnetic fluid grinding methods and magnetic fluids used home and abroad have been reviewed. The current research work and development prospect are also exposed. 文摘:回顾了国内外常用的磁流研磨方法和采用的研磨流体,简述了磁流研磨领域的国内外研究概况及其发展前景。
Abstract: The general situation and progress of magnetic dipole theoryresearch during recent twenty years in China were introduced briefly including magnetic dipole; linear and strip magnetic dipoles of finite lengths; magnetic force on a magnetic particl 文摘:简述20年来中国无损检测中磁偶板子理论研究的概况和进展,主要介绍磁偶极子,有限长磁偶极线和极带,磁粉颗粒的受力,磁化场方向对磁粉显现缺陷的影响,棒料、管材和方钢的纵向磁化,工件表面沟槽深度对其引起漏磁场的影响,周向磁化时工件底棱上的杂乱显示成因,圆盘边缘柱面上沟槽内外漏磁场的解析表达式和针状磁介质对两个点磁荷间磁力的影响等。
Abstract: The general situation of the development of bentonite green sand moulding process and the development of selfsetting sand moulding process with chemical binders was introduced,and some suggestions to the development of moulding sand process was 文摘:介绍了湿砂型膨润土砂和化学自硬砂两方面对砂型工艺的发展概况,并对福建省型砂工艺的发展提出了一些建议。
Abstract: The generalized shrunken prediction of finite population is introduced,using generalized shrunken least squares estimator of linear regression models.With respect to prediction mean squared error,a necessary and sufficient condition for superior 文摘:利用线性回归模型的广义压缩最小二乘估计,引入了有限总体的广义压缩型预测,在预测均方误差意义下,得到了广义压缩型预测优于最佳线性无偏预测的一个充分必要条件;在只能得到每个个体指标的线性组合时,引入了一种线性约束型预测,并得到了线性约束型预测优于最佳线性无偏预测的一个充分必要条件.
Abstract: The generation and control of odorous gases in treating night soil sludge was exploited in this paper.The results indicated that high concentration odorous gases can be generated during whole process in treating night soil sludge.In order to con 文摘:对粪渣污泥处理处置过程中恶臭气体的产生及控制进行了研究,结果表明,在综合处理全过程的几个主要阶段都会产生高浓度的恶臭气体,为防止恶臭气体对环境造成的二次污染,提出采用沼气锅炉焚烧和洗涤塔相结合的除臭工艺,洗涤塔除臭只有在系统启动、调试和沼气锅炉发生故障的情况下使用。
Abstract: The genesis of spots in ore-bearing rock of Baguamao gold deposit has been elaborated, through the geologic background,the characteristics of ore-bearing bed,the mutiperiodic mineralization and the mineral composition.The author indicates that t 文摘:主要从成矿地质背景,含矿层特征和多期成矿等方面阐述了八卦庙金矿含矿岩石中斑点的物质组成及其特征,指出秦岭泥盆纪含矿岩石中斑点状构造为成矿流体多期作用的结果且与金矿化关系密切,可作为金矿化的重要标志之一。
 
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