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The formulas derived show that FAM is more accurate and reasonable than finite difference method and finite element method , also, on the element partial differentiation of dynamic Reynolds equations with respect to circumferential and axial direction is directly obtained by finite analytic solution.

本文在详细分析目前流体润滑轴承层流、紊流润滑理论及轴承-转子系统稳定性理论的基础上，提出了将有限分析法用于计算动压、静压、动静压轴承的静特性和动特性系数，并推导了相应的计算公式。

This article gives that several commonly rational functions are divided into the decompose summation of the partial fraction formulas and their proof.

摘要给出了几个常用有理分式分解成部分分式之和的分解公式和证明。

Simple analytic formulas for odd and even mode capacitances per unit length and characteristic impedances for those two coupled structures were derived using conformal mapping method and partial capacitance technique.

采用保角变换和部分电容法，导出了耦合共面波导奇偶模单位长度电容及其特性阻抗的解析表达式。数值结果与利用其他方法分析椭圆耦合带线、三带线耦合共面波导和矩形屏蔽耦合共面波导的结果吻合得较好，表明本方法是可行

The DC reactive power is the only parameter to be specified in calculation, and the partial differential formulas in Jacobian matrix do not change when the DC control model changes.

计算时，只需规定换流器直流侧的无功功率，而且当直流系统控制方式发生变化后不需重新推导Jacobian矩阵中的偏导公式。

I have calculated the species diversity for 3 layers (i.e. tree layer, shrub layer and herb layer) by means of various biodiversity index formulas and analyzed the relative species abundance using 9 models of the probability density distribution functions, such as, 3 Distribution (or Beta Distribution, Weibull Distribution, Lognormal Distribution, Poisson Distribution, Binomial Distribution, Negative Binomial Distribution ,Geometric Distribution, etc.. chi-square analyses were conducted on species distribution by using the chi-square test formulated by Pearson to test which distribution function is better, the result of chi square test made it possible to reject the other 8 distribution functions, theβdistribution function performs better than other probability density functions, it has a very close approximation, which can be used for the description of relative abundances of species in forest communities in this data set.

在相对多度研究上选用了九种概率分布模型，这九种概率密度分布函数依次为：贝塔分布、Weibull分布、对数正态分布、泊松分布、二项分布、负二项分布、几何分布、对数分布和奈曼A型分布，并进行了严格的卡方检验，结果表明：其它八种分布均被遭到拒绝，只有贝塔分布获得了通过，且拟合的结果非常理想。

In this paper the problem of rationa1 regulation in penstock of the mixed- flow water turbine is studied, comparative1y simple and exact computation formulas are given, together with concrete examples.

本文研究了混流式水轮机管道水锤压力的合理关闭规律问题，给出了较为严格的、简便的计算公式；并附有实例。

The first is a direct request using the explicit performative utterance formulas.

第1个是直接的请求使用外在的述行语表达公式。

The value of the Wiener Index for a class of linear phenylene molecular graph is calculated, and the linear recursive formulas is obtained, and then the exact expressions are gained by solving some difference equations of the recursions.

文章给出了一类一般线性聚亚苯基图hQ的Wiener拓扑指标的线性递推公式，通过求解差分方程而得到了它的Wiener拓扑指标的精确表达式。

A value of the Wiener index for a class of linear phenylene molecular graphhM is calculated, and a linear recursive formulas is obtained, and then a exact expressions is gained by solving some difference equations of the recursions.

给出了一类一般线性聚亚苯基图hM的Wiener拓扑指标的递推公式，通过求解差分方程而得到了它的Wiener拓扑指标的精确表达式。

Based on the non-linear system and in the light of the characteristics of piecewise linearization of the bumper performance curve in the calculation of train coupling s,the calculation formulas are re-deduced by use of the basic principles of Newmark-β method.

基于非线性系统，针对列车连挂计算中缓冲器特性曲线分段线性化的特点，利用Newmark-β方法的基本原理重新推导计算公式，改进了传统的Newmark-β方法，改善了算法的稳定性，减小了计算误差，使之适用于列车连挂的计算。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。