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This chapter briefly introduces theory on the efficiency of state-owned companies, theory based on Berle and Means hypothesis, theory based on LLSV hypothesis and theory on pyramidal structure, with the aim of providing theoretical background for study on China's listed companies.

第二章是理论研究回顾，介绍国内外相关的理论研究成果，包括国有企业效率的理论研究、Bede和Means范式的理论研究、LLSV范式的理论研究、金字塔控股结构的理论研究四个方面，从而较系统地了解国内外相关理论成果。

In this paper, theoretical analysis has been made on pressure distribution of new poisonous gas purifier's passage based on Bernoulli Equation.

利用离子交换纤维织物作吸附净化材料，设计开发的新型有害气体净化器，有着广阔的应用前景。

A theoretical analysis method for head-flow rate curves of helico-axial multiphase pump was proposed on the basis of the basic energy equation for axial pump and Bernoulli equation.

基于轴流泵的基本能量方程式和伯努利方程，提出了螺旋轴流式多相混输泵的扬程—流量特性曲线的理论分析方法。

Based on Bernoulli equation and laminar flow theory, the theoretical calculation formula of fluid viscous damper with double-guide bars style is established according to hydrodynamics theory.

2以伯努利方程和层流理论为基础，根据流体力学理论建立了双出杆型粘滞流体阻尼器的理论计算公式，并探讨了理论计算公式与实际应用之间产生差异的原因。

This paper systematically expounds the basic principles of hydrodynamics and gives a kind of theoretical estimate on the necessity of safety and protection in large train-acceleration by the application of Bernoulli Equation and its principle of pressure reduction from fluid velocity increment.

对流体力学的基本原理进行了系统表述，应用伯努利方程及其流速增加压强降低原理，对铁路提速中安全防护的必要性提供了一项理论估算。

In chapter 3, the linear approximate method of Bessel function for measuring nanometer vibration is studied. The error of linear approximate is analyzed and the theoretical measurement range of this method is given.

在此基础上，首次提出了一种双光路DSPI振动测量系统，利用退敏感光路使贝塞尔函数线性近似法的测量范围扩大了24倍，由近50nm增至1150nm。

Theoretical analysis demonstrates that the phase change caused by the shift of illuminated light is ignored in discussion before.In this study,this method is corrected by overlapping a phase factor and a new method is put forward to eliminate the effects of this factor by utilizing the phase characteristics of squared Bessel function.

理论分析发现，以往的讨论忽略了照明光之间位移引起的相位变化，研究通过叠加一个相位因子对此进行了修正，并利用贝塞尔函数平方的相位特点提出了消除该相位因子的办法。

Within this framework we develop a theoretical approach to interpret photoelectron angular distributions in terms of a generalized phase Bessel function which can determine the principal features of the distribution and its variation with laser frequency and intensity.

文章作者及其合作者发展了光电子角分布的处理方法，利用复合相位Bessel函数来表征光电子的跃迁几率幅，将光电子的角分布与复合相位Bessel函数直接联系起来。

In this way we can make the best approximation to the theoretical supposition of measuring target positions along a straight line by constant orientation.

这样，我们就能作出最佳逼近理论假设的测量靶阵地沿着一条直线不断的方向。

On the contrary, regional and residual anomalies separated by the best uniform approximation theory fit fairly well with the theoretical anomaly, with the curves in fairly good agreement.

而利用最佳一致逼近原理分离出的区域场和局部场与理论异常值拟合得较好，曲线基本重合。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。