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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
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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。 |
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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
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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. |
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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
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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。 |
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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
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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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Abstract: The gold-telluride deposit is an important type of gold deposit.
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文摘:金-碲化物型矿床是一种重要的金矿类型。 |
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Abstract: The growth and expansion of the Japanese retail giants all rely on their general supermarkets, which is the principal format up to now.
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摘要:日本零售业的几大巨头,都是依靠综合超市在流通革命中发展壮大的,综合超市至今仍是日本零售业的主力业态。 |
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Abstract: The growth character and biological changes of cotton plant flooded were studied.The agricultural measure and strategy of recovering its growth was presented in the paper.
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文摘:研究了棉花受水灾后的生理变化和生物学特性的改变,提出了棉田灾后恢复的农业措施与对策。 |
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Abstract: The hardware optimization technique of mono-similarity-system generation is presented based on hardware/software(HW/SW) co-design.First,the coarse structure of sub-graphs' matching based on full-customized HW/SW co-design is put forward.Then,a u
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文摘:提出了基于单相似系统生成的软/硬件协同设计中的硬件优化技术.介绍了一种基于子图匹配软/硬件协同设计技术的大致框架,引进通用子图群合并算法,并着重讨论了基于节点压缩优化技术的高效子图群合并算法.实验结果很好地证明了所有上述理论的正确性以及算法的有效性. |
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Abstract: The hardware structure, software design and the functions of theflammable gas detector controlled by AT89C52 single chip computer are introduced concretely.
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文摘:具体介绍了利用AT89C52单片机控制的可燃性气体浓度检测仪的硬件结构、软件设计以及实现的功能。 |
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Abstract: The hierarchical analytical technique is a mathematical mthod with which one can decompose step by step a complex problem that can hardly be quantified into a series of quantifiable simple problems and then seek the solutions.
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文摘:层次分析是一种将难于定量化的复杂问题,逐层分解为一系列可定量化的简单问题,进而进行求解的数学方法。 |
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Abstract: The high-frequency pulse waveform of WEDM pulse generator was analyzed. Basic condition method is presented the results is well.
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文摘:分析了电火花线切割机脉冲电源的高频脉冲波形,提出了有效的控制方法,获得了良好的综合效果。 |