对称的

The research achievement can be applicable to the electrohydraulic servo system with asymmetric or symmetric cylinder.

本文不仅是数字控制的基础理论研究，同时也是电液伺服系统数字化的应用研究，其研究成果同样适用于具有对称缸或非对称缸的电液伺服系统。

In Chapter 3, the generalized skew-symmetric solutions of the matrix equation A~TXA = B on the linear manifold S ={X e GKSR~|||XY - Z}}= min, Y, Z∈ R~}, using the canonical correlation decomposition of a matrix pair, the necessary and sufficient conditions for the existence and the expressions for the generalized skew-symmetric solutions of matrix equation A~TXA — B on the linear manifold are established.

利用矩阵对的标准相关分解，给出了这类线性流形上矩阵方程A~TXA=B存在广义次对称解的充要条件及其通解表达式，并且导出了极小Frobenius范数广义次对称解的表达(来源：d7d7A7dBC论文网www.abclunwen.com)式。

Symmetry group is a connected compact Lie group, the system has also a fine cascade decomposition.

该章正是从这一角度出发，通过参数确定了线性控制系统的对称代数，而且构造出的对称代数其维数是最大的。

Combining the new preconditioner with GMRES, both convergency and convergence rate of power flow computation can be improved.

利用矩阵的对称反对称分裂，提出一种新的预处理子，并将其与GMRES算法相结合，改进潮流计算的收敛性和收敛速度。

It also provided the conditions for the existence of large cores of symmetric games. It proved the equivalence relation of convex games and monotonic symmetric games.

本章还给出了对称对策的广义核心存在的条件，证明了凸对策与单调对称对策的等价关系。

VPN cryptographical system is concerned with cryptographical technology,authentication technology and VPN implementation protocols. Symmetrical cryptographical algorithms,Non-Symmetrical cryptographical algorithms and Domestic cryptographical algorithms are discussed.

在加密技术方面，本文对对称加密算法、非对称加密算法以及国内专用密码算法做了详细的讨论和比较；在认证技术方面，本文比较了基于口令的认证方法、智能卡认证方法、CHAP认证方法、RADIUS认证方法、Kerberos认证协议和数字证书的认证方法；在VPN实现协议方面，本文对PPTP／L2TP协议、IPSec协议、SOCKS协议以及MPLS协议进行了讨论和比较。

The paper has discussed such problims as the properties of sub-eigenvalue and sub-eigenvector of real-anti-sub-symmetric matrix,and its diagonalization.

讨论了实反次对称矩阵的次特征值与次特征向量的性质及实反次对称矩阵的对角化问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The elliptic type governing equations, subject to free boundary conditions, have been solved to sutdy the velocity, temperature, and pressure distributions throughout, as well as local Nusselt numbers from 10/sup 2/ to 10/sup 6/ are presented for both symmetric and asymmetric heating cases, and the influence of wall temperature difference ratio, r'/sub T/ on the flow pattern is also considered.

由求解椭圆型统制方程式及利用自由边界处理方法，来计算整个流场的速度，温度和压力分布，以及在板面上之局部纳瑟数。葛拉修数的计算范围为102-106，且包括对称及不对称加热二种情形，尤其是二板温差比。gamma。/sub T/对流场的影响方面。

Overcoming the inability of Forcing Decoupling method, this paper presents a new method-To-Step-Additional-Stiffness method to calculate the translation-torsion coupling seismic response of tile symmetric structures with asymmetrically viscous dampers.

摘要克服强行解耦法不能求解对称结构由于不对称安装粘滞消能器而产生平扭耦合地震作用的不足，提出了一种求解该种情况下的平扭耦合地震反应的新方法－两步附加刚度法。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失