层理论的

Drilling track is key factor which decide trenchless success or failure , but controlling drilling track stay around rectifyed phase at the present .guided the theory of force is the key affectting the drilling track ,the paper discuss primary factors on contralling drilling track ,and advance the formulary ahout reckoning deviation force and azimuth force ,expect to achieve the aim that drilling track were controled real time and be anticipated , and have the initiative on drilling track contaolling .

岩层钻进轨迹是决定非开挖成败的关键因素，目前对钻孔轨迹的控制仅仅停留在被打纠偏层面上，本文在力是影响钻进轨迹本质因素理论指导下，对影响岩层钻进轨迹控制的因素进行了理论探讨，并针对造斜力和变方位力提出了计算模式，希望最终能实现钻孔轨迹的实时监控与调整，变被打纠偏为主动钻进。

Thin elastic foundation of cement concrete pavement design theory, in-depth analysis is to arrive at the grass-roots non-uniform bearing broken concrete pavement panels, gnawing edge, the wrong units, as well as the main reason for structural damage produced by taking certain measures to improve the concrete between the road surface and the grass-roots support conditions, and improve durability of the cement concrete pavement and stability.

面层与基层之间存在脱空现象和不均匀支承的状况，致使水泥混凝土路面的承载力下降。通过水泥混凝土路面弹性地基薄板的设计理论，深入分析得出基层的不均匀支承是水泥混凝土路面断板、啃边、错台、以及产生结构性破坏的主要原因，通过采取一定措施改善砼路面面层与基层之间支撑条件，提高了水泥混凝土路面的耐久性和稳定性。

Thin elastic foundation of cement concrete pavement design theory, in-depth analysis is to arrive at the grass-roots non-uniform bearing broken concrete pavement panels, gnawing edge, the wrong units, as well as the main reason for structural damage produced by taking certain measures to improve the concrete between the road surface and the grass-roots support conditions, and improve durability of the cement concrete pavement and stability.

面层与基层之间存在脱空现象和不均匀支承的状况，致使水泥混凝土路面的承载力下降。期刊文章分类查询，尽在期刊图书馆通过水泥混凝土路面弹性地基薄板的设计理论，深入分析得出基层的不均匀支承是水泥混凝土路面断板、啃边、错台、以及产生结构性破坏的主要原因，通过采取一定措施改善砼路面面层与基层之间支撑条件，提高了水泥混凝土路面的耐久性和稳定性。

First of all, this paper derives pressure expressions of stable state about vertical well inanisotropic media with various boundary. Based on this, Formulae of pressure distributionfor five-spot pattern and nine-spot pattern have been established, the characters of isobariccontours and streamline are analyzed, and this equips optimum of well pattern with theoreticfoundation.

首先利用坐标转换及镜像反演理论，推导了单一直井直线边界、平行直线边界的定常渗流的压力分布公式，在此基础上研究了五点法井网、九点法井网定常渗流问题，推导了压力分布方程，分析了等势线及流线的特点，为各向异性储层井网优化提供了理论基础。

In this paper, we have applied several theories from strategic management and marketing, such as long-tail and ?

本文主要的贡献在于根据互联网新经济的运行规律，包括具有用户个性化服务和市场细分特征的长尾效应，以及第三方付费的营销理论，对运营商在宽带的增值业务层和应用层的战略发展提出了新的思路和实施途径。

The fractal theory was used to build fractal microfibril in wood cell wall,and fractal dimension of fractal microfibril layer S1 and layer S2 were calculates,then wood fiber frame with nanometer scale was pointed out.

利用分形理论构建了木材细胞壁中的分形木质纤维，并计算了分形木质纤维 S1层和S2层的扭曲分形维数，指出木材中具有纳米尺度的纤维结构；同时，以木材液化和纳米纺丝技术为基础，提出了木材苯酚液化产物制备碳素纤维材料的构思和技术路线，为解决木材纳米、微米材料的制备提出了新思路。

Based on this,189 bridgesin the actual projects as a sample were selected,the connection between static test result anddanymic test result was built in this paper in order to assess the structure\'s bearing capacity bydynamic characteristics of bridge.The main contents are as followings:(1)On the base of actual observation records of bridge samples,the mechanicalproperties of the assembly slab bridge is obtained,and the mechanical characteristic ofhinged joint and bridge deck,the distribution of the guard rail in transverse direction are alsodiscussed.Based on the above analysis,the rational theoretical model is built,which offerssome reference to assess the structure\'s bearing capacity.

基于此，本文在实际工程项目中选取189座板桥作为样本，通过对样本桥梁实测静载挠度、应变和动载频率进行统计回归分析，建立桥梁结构动载试验结果与静载试验结果之间的关系，通过桥梁结构动力特性来评定结构承载力，论文主要完成了以下几个方面的工作：(1)以样本桥梁实测数据为基础反演装配式板桥受力特性，确定各种型式装配式板桥的铰缝受力特点、桥面铺装层受力特点以及护栏沿桥面横向分配原则，以此建立真实反映装配式板桥受力特点的理论计算模型，为装配式板桥承载力评定提供理论计算依据。

The EIM was introduced at first. By solving the scalar wave equation within cladding of TIR-PCF, the fundamental space-filling mode and the effective index of the cladding were calculated. The logical effective radius was selected, and the propagation properties of TIR-PCF were discussed with the classical theory of step-index fiber.

深入研究了有效折射率模型的构造，通过求解标量波动方程得到了光子晶体光纤包层基空间填充模，得出光子晶体光纤的包层有效折射率；选择了较合理的有效半径，利用经典的阶跃光纤理论来研究光子晶体光纤的传输特性。

Studies on the prudence of their stock preference will provide help to forming the prudent investment concept for Chinese institutional investors, and to giving some useful suggestions to our decision-makers and regulation system. So this paper is practically and theoretically important. Guided by above objectives, we make an empirical study on stock preferences of Chinese institutional investors. Our study is based on models and methods designed by S.G.

上述情况表明，我国监管层和学术界对该问题的重视不足，因此，对我国机构投资者的审慎性持股偏好进行实证研究，进而为机构投资者审慎投资理念的树立、为决策层、监管层的政策制定与监管实施提供参考意见，也就具有非常重要的理论价值和现实意义。

It was the first time that experimental studies of the flow characteristics and convective heat transfer in platelet regenerative cooling channels with high aspect ratio were conducted in China.

大高宽比再生冷却套在宽度上已属于微小通道，为考察其流动传热是否与常规尺度管道不同，本文理论分析采用经典N-S方程而未考虑微小尺度效应是否合理，研究流道高宽比等几何参数对其水力和对流换热特性的影响，分别搭建了挤压式水力实验台和泵压式对流换热实验台，设计了d〓=1.0~1.2mm，宽度为0.6~0.8mm，AR=3~15的5个不同高宽比矩形通道层板试验件，采用线切割加工槽道和扩散焊接盖板的制造工艺，得到了质量可靠的试验件，以水为工质，在国内首次对大高宽比层板再生冷却通道的流动和对流换热特性进行了实验研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。