With a brief introduction to the related policies and legal environment for direct foreign investment in china ' s projects for basic facilities , the author points out that the investment environment shall be further optimized , so as to attract foreign investment in china ' s infrastructure projects , and practical investment tactics shall be studied carefully for the entry of foreign investors into the infrastructure field 摘要介绍了我国目前基础设施建设中利用外资的法律政策环境及引进外资的方式,提出了优化投资环境,走持续利用外资参与中国基础设施建设的发展道路;讨论了投资者如何进入中国基础设施建设领域的策略。
The analysis method has been adopted to analysis the scale , allocation and benefits of the world bank agricultural loan projects in china . loan allocation in each assigned phases and related features has been studied carefully , the project benefits in terms of economic , social and environment have been summarized and factors affected the project benefits have been identified 本文采用实证研究的方法对我国农业利用世行贷款的规模、结构和效益进行了研究,分析了我国农业利用世行贷款的在不同阶段规模、地域等分布特点,归纳总结了世行农业贷款项目在经济、社会和环境方面的效益及其影响因素。
The factors influencing on the performance of ash - jd such as the moore ratio of monomers , the reaction temperature and time , concentration , the ph value of reaction solution and the drippy speed of formaldehyde were studied carefully . through experiments , the optimum level of those factors was gained 论文详细研究了反应单体的摩尔比、反应温度、时间、浓度、反应溶液的酸碱度及甲醛的滴加速度等对产品ash - jd性能的影响,通过试验,得到了这些因素的最佳水平。
The notion of explicitly geometric shape feature position of primitive is introduced , and the classification of explicitly geometric shape feature position is studied carefully . secondly , taken the combining principle of combined entity as the basis , the notion of explicitly geometric shape feature position constraint of combined entity is introduced . the classification - the explicitly reductive capacity to location dimension , constraint degree , dividing constraint level of explicitly geometric shape feature position constraint are systematically studied 其次,对组合体的组合机理进行了分析,并在此基础上,引入了组合体的隐式几何形状特征位的概念,系统的讨论了组合体的隐式几何形状特征位约束的分类、组合体的隐式几何形状特征位约束对定位尺寸隐含性缩减的性质、组合体的隐式几何形状特征位约束的约束度、隐式几何形状特征位约束的优先级别划分。
Nonparametric model is widely used in the practical problems , the reason is that the form of the regression function in the nonparametric model is free , and the limits to the random variate ( x , y ) are fewer . in the past several decades , this model is studied carefully by the researchers of statistics , and many achievements are arrived in both theorial fields and in applicational fields 非参数回归模型,由于其回归函数的形式可以任意,而且对随机变量( x , y )的分布限制较少,因而在实际中有着广泛的应用背景。几十年来,统计工作者对这一模型进行了深入细致的研究。无论在理论上还是应用上,都取得了许多优秀成果。