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This paper , which aims at the developing strategy of express service ,researching and analyzing Chinese and foreign express corporations current situation ,forecasts the demand of Chinese express market in 15 years with conic section model on the base of statistics.

本文立足于快递业的发展战略，调查并分析了中外快递公司在我国发展的现状，根据实际的快递业务数据，利用二次曲线预测模型方法对未来15年内的快递市场需求量进行预测，并在分析快递业存在问题的基础上，提出了快递业谋求发展的措施以及应付激烈竞争的对策。

This paper uses SPSS software to research the problem and discover some results: The relation between board size and EPS is remarkable but actually U conic section relations.

本文通过SPSS软件进行描述性统计，并利用所得数据和设计的模型，对董事会特征与公司绩效进行相关性分析，对提出的假设进行检验。

Through summary to the construction of Contract 19 Section box arch bridge along Dali-Baoshan Highway,this paper briefly introduces the hoisting method and monitoring control measures of this bridge.

文章通过对大保高速公路19合同段箱形拱桥的施工总结，简要介绍该桥的吊装方法及监控措施。

With considering of the risk, and through analyzing effective equations, the paper gains the generation company's supply curve and the power distribution company's demand curve of contract thus finds the effective bargaining section, and establishes the relations between the transaction capacity and price.

研究了双边合同谈判的动态形成过程。在风险规避的条件下，通过效用方程分析得到发电公司的合同供给曲线和配电公司的合同需求曲线，并确定了合同的有效谈判区间，从而建立了合同数量和价格的谈判关系。

In the last section of the paper, the control system is researched.

论文的第三部分着重研究了高速发电机组的控制方法。

And this paper assumes that resisting power is accordwith parabola, gets all arch as basic configuration, gets formulation from the condition that therelative corner , horizontal displacement and vertical displacement of vault section iszero,adds deformation condition of maximum resisting power and zero resisting power, solvesequation group to get the internal force of lining . And lining internal force computing methodunder bias load based on assumed resisting power method is formulized.

本文假定弹性抗力按二次抛物线分布，取全拱为基本结构，由拱顶截面的相对转角、相对水平位移和相对垂直位移为零的条件列出变形协调方程，再增加最大弹性抗力处的变形协调条件和弹性抗力为零处径向位移为零的变形协调条件，解方程组求解得出衬砌结构的弹性抗力分布及内力。

The numerical analysis method is used to study the ground movement laws caused by the ovalization variation in the cross section in the action of water and soil pressure of tunnel lining.Based on the stochastic medium theory,this paper suggests the method for calculating this ground movement caused by tunnel ovalization deformation.

采用数值分析方法研究了隧道衬砌在土水压力的作用下，断面所产生的椭圆化变形引起的地层位移规律，并基于随机介质理论，给出了计算隧道椭圆化变形引起地层位移的方法。

This paper describes a new method for simulation of the cross section shape of log.

描述了一种模拟原木截面形状的新方法。

This paper also compares and analyzes the correlation of risk factors and the significance of the model in different cross section.

本文对该模型各风险因子之间的相关性以及在不同截面上模型的整体显著性进行了比较和分析。

This paper discusses its light steel portal frame cross-section of optimization methods and software functions and applications.

本文论述了其轻型钢结构门式刚架的截面优化方法以及软件的功能和应用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。