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Based in this period mainly on coal mining and steel production the area slowly lost its economic power during the 1970s when new technologies came up and new economic growth areas had developed elsewhere.
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在这一时期形成的基础产业煤炭和钢铁生产在1970年代逐渐失去了发展动力，而此时在各地区都出现了新技术发展和新经济增长地区的形成。 |
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Based nit the definition of production decline rate, the multifactor analytical model for composite decline rate is developed, which discusses affecting factors stub as the startup well number, water cut, producing fluid thickness, pressure, relative prod
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摘要从产量递减率定义出发，首先导出了综合递减率与开井数、含水、产液厚度、压力、相对产液指数、井网密度、表皮系数等多因素分析模型。 |
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Based of analysis on the opportunities, the competitive situation and the buyer's market trend of our higher vocational education, and higher vocational colleges' present management condition, we can come to the conclusion that higher vocational colleges
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从我国高等职业教育面临的发展机遇、市场竞争态势、买方市场趋势及高职院校的管理现状看，高职院校要实现可持续发展，必须实施顾客价值管理。 |
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Based on The Murder in the Rue Morgueand The Purlioned Letterand three other detective stories by Edgar Allan Poe, this paper focuses on the creation of the four elements and functions of the pattern of Western detective stories.
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摘要这里从《莫格街血案》、《窃信案》等5篇侦探小说入手，对艾伦?坡在西方侦探小说方面做出的特殊贡献进行了深入阐释，对这一小说样式的独特模式的四个要素及各个要素在小说中所起的作用进行了详细剖析。 |
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Based on 185 listed companies with competitive shareholding structure in China, we find that the shareholding ratio by the 5 larger shareholders is related with each other significantly, the ratio of share held by the top 1, top 2 and top 5 large sharehol
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对我国185家竞争性股权结构公司的分析表明，前五大股东持股比例之间呈现出依次显著性的正相关关系，第一、第二和第五大股东持股比例与公司业绩显著正相关，但这类上市公司并没有比非竞争性股权结构公司具有更好的业绩。 |
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Based on 1986 TM and 2000 ETM data, the land use and landscape pattern change in the source region of the Yangtze River was studied with geographical information system (GIS) and the analytic method of landscape ecological spatial patterns in both spatial
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摘要长江源区是我国重要的水源涵养区，也是高海拔地区生物多样性最集中的地区和生态变化最为敏感的地区。 |
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Based on 1:1,000,000 generalized aeromagnetic survey in central and 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 River sut
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摘要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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Based on 1:100000 high-precision aeromagnetic data, the author holds that Huangzhuguan-Yushuba fault is not only a second-order synsedimentary fault associated with Lixian-Mayanhe regional fault in the north, but also a deep fault that cuts the basement.
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摘要通过对1:10万高精度航磁资料研究，认为黄渚关－榆树坝断裂不仅仅是其北部礼县－麻沿河区域性断裂伴生的1条次级同沉积断层，而是1条切割基底的深大断裂。 |
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Based on 2002-2006 European Innovation Scoreboard Methodology Reports issued by EU and EU's strategy ″Creating an Innovative Europe″, we found that EU's innovation appraisal methodology is being transformed from the criterion of new technology creation to
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通过对2002年至2006年欧盟创新评价方法报告以及2006年欧盟委员会公布的欧洲创新战略——《创造一个创新型欧洲》的研究,发现欧盟创新评价方法正在由以新知识和新技术创造过程为主线的评价变革为以创新需求、创新投入、创新产出、创新传播为主线的创新过程评价。 |
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Based on 30 typical samples of gateways including six major factors, a new model of support vector machines for the classification of surrounding rocks of gateways was constructed.
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选择6项影响回采巷道围岩分类的主要指标，利用30组巷道围岩数据作为学习样本，建立了回采巷道围岩分类的支持向量机模型。 |
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Based on 3D fundamental equations of elasticity and by assuming boundary displacement functions associated with free edges, the state equation for orthotropic laminated plate is established and a analytical solution for rectangular plate with two opposite
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摘要从三维弹性力学基本方程出发，通过假设自由边的边界位移函数，建立了正交异性层合板的状态方程，给出了对边自由，对边简支矩形板的解析解。 |
