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Abstract: The passage probes into the requirement of the continuous casting technology for the preformances of crystal implement copperplate.On the basis of the comparison of profermances of different typtes of crystal implement copperplates at home,a rea
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文摘:探讨了连铸技术对结晶器铜板性能的要求,在比较国内各种不同类型结晶器铜板性能的基础上,确定了研制方案,所研制的产品在强度、硬度、耐磨性、导热性等方面均优于国内现有结晶器铜板. |
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Abstract: The performance of screw compressor in air-source heat pump heater/chiller unit operatingin winter is simulated using the neural networks.
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文摘:采用神经网络对冬季运行的空气源热泵冷热水机组中螺杆式压缩机的特性进行了模拟。 |
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Abstract: The permeability of 12 types of geotextiles, used as sub-drain pipe filters, were tested andcompared under two kinds of soils sampled from Ningxia Yinbei Drainage Project area.
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文摘:采用一维和二维渗透模型对土工织物作为农田暗管排水外包滤料进行了试验研究。 |
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Abstract: The petrologic characteristic and the pore types of Y8~Y10 reservoir are studied by X-ray diffraction method, the quantitative mineral clay analysis method and thin-section analysis method.Based on the study,the mistakes are corrected in the nam
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文摘:利用X衍射全岩分析方法、粘土矿物定量分析方法和薄片鉴定等方法研究了城华地区延8-延10储层岩石学特征和孔隙成因类型.综合论述了城华地区延8~延10油组不同岩相储层砂岩的基本特征,纠正了砂岩定名的错误和主要填隙物成份的错误,同时还论述了储层砂岩的孔隙特征和控制孔隙发育的主要因素. |
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Abstract: The phenyl Lithium, 2-methoxy phenyl Lithium and 2,4-dimethoxy phenyl Lithium reacted with the cinnamic acid to produce a corresponding chalcone in 75%, 56%, 50%yield, respectively. 2,6-Dimethoxyphenyl Lithium could not react with cinnamic acid,
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文摘:苯基锂、2-甲氧基苯基锂和2,4-二甲氧苯基锂分别与肉桂酸反应以75%,65%,50%的收率生成相应的查尔酮;2,6-二甲氧基苯基锂与肉桂酸不发生反应,但能与肉桂酸甲酯反应生成2′,6′-二甲氧基查尔酮;类似的还制得了2′,4′,6′-三甲氧基查尔酮和2′,4′,4,6′-四甲氧基查尔酮。 |
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Abstract: The physical new curriculum will implement in nation wide range,This article first introduces the new curriculum standard thecharacteristic, Recombination physics test introduction convention test questiontopic good and bad points,Elaborated the
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摘要:物理新课程将在全国更大范围内实施,本文首先介绍新课程标准的特点,再结合物理考试介绍常规考试试题题型的优缺点,阐述物理试题的编写要体现新课程目标。 |
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Abstract: The physical significances of the reaching law parameters and the qualitative relationships among them in variable structure control(VSC) are analyzed.According to the relationships,a reaching law control method is put forward based on fuzzy rul
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文摘:分析了变结构控制设计方法中趋近律参数的物理意义及参数之间的定性关系,根据这些参数的定性和不精确关系,提出了基于模糊规则的趋近律控制——模糊趋近律控制,即用模糊规则来选择趋近律的参数,以达到改善品质控制的目的.仿真结果表明,笔者给出的方法既保留了传统趋近律方法所具有的较强鲁棒性优点,又使控制系统的品质控制具有较强的自适应性,同时还比传统趋近律方法更有效地削弱变结构控制系统中固有的颤振. |
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Abstract: The physical-chemical proerties of grains and flour and doughrheological properties of four kinds of French commercial wheat were analy zed.The suitability of French wheat flour for Chinese traditional food products such as steamed bread and noo
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文摘:本文主要就4种法国商用小麦的理化特性及其面粉的理化特性和面团的流变学特性等进行较为全面地分析,并初步探索了法国小麦粉在中国传统食品馒头、面条中的应用,旨在为合理利用法国小麦、面粉制作中国传统食品馒头、面条提供一些指导。 |
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Abstract: The physiological specialties of photosynthetic bacteria and its mechanism of organic wastewater treatment were reported.The achievements of recent research at home and abroad for application of PSB in organic wastewater treatment were reviewed.
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文摘:综述了光合细菌独特的生理特性和其处理高浓度有机废水的原理,介绍了近年来国内外利用光合细菌处理有机废水的研究成果,并对光合细菌用于废水生物处理的前景及存在的问题进行了评述。 |
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Abstract: The planning of 2007 Garden Show Park in Xiamen takes full advantage of the exiting conditions and sets up the new landscape forms upon the exiting landscape features of the site.
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摘要:厦门2007年园博园规划方案充分利用了现状条件,使新的景观形式建立在基址原有的地域特征的基础上。 |
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Abstract: The pollen morphology of 5 species of Corydalis from northeast China was observed and compared by SEM.The results declared the shape and size of the pollen and exine sculpture of the 5 species were basically stable and could serve as a taxonomic
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文摘:用扫描电镜对东北延胡索极其近缘植物的花粉形态进行了观察,结果发现花粉粒在形状、大小、外壁纹饰、沟的长短及宽度等方面均有区别,从中获得了东北延胡索及其近缘植物分类方面的孢粉学依据.因此花粉的特征可用于区别延胡索类植物. |