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Analytical expressions for their degree distributions and clustering coefficients are derived, which depend on the dimension of the associated Apollonian packing.

对HDRAN、V-HDRAN及EAN这三个网络模型的拓扑性质进行了解析计算和数值模拟，解析与模拟结果相吻合。

Firstly, the isotropic difference templates were introduced to approximate the differential in the ADI-FDTD method, and the weighting coefficients of difference terms were determined for implementing isotropic numerical dispersion; Then the permittivity and permeability were adjusted manually to reduce the numerical dispersion error in any directions. Therefore the simulation accuracy and efficiency can be improved effectively for time domain problems with some finite bandwidths.

该方法在ADI-FDTD方法的差分近似微分中引入各向同性差分模板，并通过确定各向同性差分的加权系数来近似实现各向同性，然后人为修正空间的介质参数来减少各个方向上的数值色散误差，因此在模拟一定带宽的时域问题时可有效提高计算精度和计算效率。

The present criterion of structure design mainly adopts the methods of approximate probability limit state design, but adopts the familiar multiply coefficients practical expression in engineering domain formally.

我国现行结构设计规范主要采用的是近似概率极限状态设计方法，形式上则采用了工程领域熟悉的多系数实用表达式。

In this paper, we study an approximate solution of the second-order linear ordinary differential equations with variable coefficients .

本文研究了二阶变系数线性常微分方程的一种近似求解方法。

For some special cases, the paper gives some important identical theorems, and then establishes a valuable relation between the uniformly almost periodic functions and the trigonometric polynomials.Secondly, on the basis of the identical theorem, the paper investigates the Fourier series of the uniformly B2 almost periodic functions, and further proves that the series is unique.Thirdly, the paper discusses the Parseval equation of the uniformly B2 almost periodic functions, which establishes the relation between these functions and the coefficients of their Fourier series; and next investigates an important approximation theorem-Riesc-Fischer theorem, about the uniformly B2 almost periodic functions and the trigonometric polynomials.

并给出了特殊情况下的几个重要的恒同定理，将一致概周期函数与有限三角多项式联系起来；第二，在恒同定理的基础上，给出了一致B~2概周期函数的Fourier级数，并且级数是唯一的；第三，讨论了一致B~2概周期函数的Parseval方程，建立了函数与其Fourier级数的系数之间的联系；接着给出了关于一致B~2概周期函数和三角多项式之间的一个重要近似定理—Riesc-Fischer定理。

In some practical problems, regression coefficients of this model are not arbitrary value, possibly they have certain restraint.

在一些实际问题中，模型的回归系数不能任意取值，可能有一定的约束。

Prove that no four consecutive binomial coefficients can be in arithmetic progression.

证明不存在四个连续的二项系数成算术级数。

Apart from these, another conclusion was drown by the author that the increase of surface energy due to the deformation after the adhesion shearing at the asperities and the viscoelasticity of polymer films is the main reason why the friction coefficients of polymer films vary with the sliding speed.

还有一条重要研究结果是，作者认为，由于聚合物薄膜受摩擦作用而发生变形以及由于聚合物的粘弹性造成变形回复的滞后而造成聚合物表面能的增大，是聚合物摩擦副的摩擦系数随相对滑动速度的变化而变化的根本内因。

Moreover,the paper puts forward the opinion that the incompatibility between asphaltene components and light hydrocarbons can be described with larger interaction coefficients.

此外，文章提出了大的交互作用系数可以描述沥青与原油中轻烃不相溶性的观点。

The influence of excluded volume on the size of tail-like chain is similar to that on free one, but the mean asphericity parameter of SAW chain is bigger than that of random-walking chain, and the correlation coefficients C〓 and C〓 were larger than those of RW chain.

排斥体积对尾形链尺寸的影响与自由高分子链的排斥体积效应相类似，但是自回避链的平均非球形因子的值大于无规行走链的值，且SAW链的尺寸与形状之间的关联系数的值大于相对应的RW链的值。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。