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Abstract: Based on 1∶1,000,000 generalized aeromagnetic survey in centraland western Qinghai-Tibet plateau, this paper has made interpretation and investigation on such geological and geophysical problems related to the plateau area as the Yarlung Zangbo
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文摘:根据青藏高原中西部1∶100万航磁概查结果，对雅鲁藏布江缝合带、塔里木盆地南部边界、高原内部几条规模较大断裂和区域性负磁异常带等高原地区几个有关的地质和地球物理问题进行了解释和探讨，获得了与以往不同的认识，这对青藏高原的深入研究具有重要意义。 |
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Abstract: Based on 1∶200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo-gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte-ristics of magnetic field, magmatic
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文摘:本文以1998年1∶20万航空磁测资料为基础，参考地质和化探资料，对工作区磁场特征、岩浆岩、断裂构造与矿产分布的关系进行探讨，研究地质成矿环境，建立寻找热液型和火山-沉积型的铜、铅、锌、金、铁、锰矿找矿标志，对本区找矿远景进行了预测。 |
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Abstract: Based on 1∶50 000 high-precision aeromagnetic data of 1996 and consulting other geophysical and geological data,this paper has analysed the framework of basement structure and fault structure and,in particular,probed into the relationships of ae
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文摘:以1996年1∶5万高精度航空磁测资料为基础，参考其它地球物理及地质资料，对山东黄河口地区基底构造、断裂构造格架进行了分析，尤其是探讨了航磁场特征、基底构造、断裂构造与地下热水分布的关系，在此基础上对本区的地热水远景进行了初步的分析。 |
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Abstract: Based on Equivalent Liquid Surface Descending Method(ELSDM)and Isolated Melting Zone Method,a multi-hot-spot and simultaneous shrinkage-feeding method was established to predict the shrinkage cavities of steel casting during solidification simul
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文摘:本文在等效液面收缩法和孤立域法基础上建立了预测铸钢件缩孔的新方法——多热节和即缩即补方法，该法实现了对模拟铸件各热节的内部动态瞬时补缩，并采用该方法对两个实际铸钢件进行了缩孔分析。 |
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Abstract: Based on Genetic Programming(GP ),a new method of formula discovery from data is introduced.The details of the method description,the design and development of the key data structure of this method are presented.Finally,two representative simula
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文摘:本文通过对遗传建模和公式发现进行分析，提出了基于遗传建模的公式发现算法，并给出了具体的描述，对算法中关键对象的数据结构给出了具体的设计，最后针对数列归纳和公式发现给出了运行结果。 |
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Abstract: Based on PGP algorithm,this paper proposes animprove d crypto-system that can be applied to the secure electric mail,and its securit yis also discussed.
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文摘:基于PGP算法，文中提出了一个应用于安全电子邮件的改进保密系统，并讨论它的安全性. |
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Abstract: Based on a description of the principle of surface wave survey exemplified by the surface wave exploration in the harnessing and beautification of Fenhe River, this paper recounts the field work method,data-processing and geological effects of s
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文摘:通过对面波勘测原理的介绍，结合太原城区汾河治理美化工程面波勘探实例，简述面波勘探野外工作方法、资料处理及达到的地质效果。 |
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Abstract: Based on a lot of technical literature both abroad and domestic,this paper analyses the recent developments and the general trend of dewatering tech nolohy.
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文摘:在查阅大量文献资料的基础上，分析了国内外高效脱水技术与设备的发展动态，分析了今后的发展趋势。 |
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Abstract: Based on a previous algorithm proposed in [ 1 ], this paper addressed an adaptive hashing algorithm of Chinese characters.
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文摘:在文献[1]的基础上，本文提出了一个适合中文信息处理用的汉字自适应散列分组查找算法。 |
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Abstract: Based on aeromagnetic data,this paper has analysed and studied regional tectonic characteristics and evolution of Yingen-Ejin Banner basin,affirmed the existence of NE-trending fault in this area,and probed into the role of the formation and dev
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文摘:根据航磁资料，分析和研究银根―额济纳旗盆地的区域构造特征及其演化，同时确定了该区北东向断裂的存在，并探讨该组断裂的发生发展对区域构造的作用。 |
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Abstract: Based on an introduction of some language acquisition theories in relation to the similarities and differences in developing proficiency in firstand secondlanguage,this paper is an attempt to shed light on the multiple dimensions of language acq
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文摘:通过介绍二语习得理论中关于第一语言和第二语言语言水平发展的异同的相关研究,阐明了语言习得/学习过程是一个包含语言,认知,情感和社会交往等多重范畴的过程.在很大程度上,第一语言和第二语言习得/学习的特殊性(如年龄,认知能力,学习动机,学习策略,社会环境等)决定了第一语言和第二语言在语言水平的发展上存在很大的差异性.鉴于此,本文也深入探讨了第一语言和第二语言语言水平发展的差异性对于外语教学的启示作用. |
