The symmetrical key cryptograph system have the single key to implement encryption and decryption fast .

公开 密钥密码 体制则拥有公开密钥和私有密钥，加、解密过程不同。

Though analyzing the possibility and feasibility of unit environmental property rights the significance of symmetrical system arrangement to avoid the inexplicit efficiency of environmental property rights is discussed in this dissertation on validity of offering and implementing system .

本文通过环境产权单元化可能性与可行性的理论分析，从制度供给和实施的有效性上，探讨了 这种 制度安排对解决环境产权泛效率的意义。

An example of box casting has been given in which designing method of cross sectional area for non symmetrical gating system was expressed the method is suitable for both of large and medium castings or several castings in one mold .

指出叠加法是一种适用于大、中型铸件或在一箱多件情况下设计非 对称型浇注 系统的实用方法。

Dual-Channel Fiber Optic Rotary Joint of Symmetrical Optical System

对称光学 结构的双光信道旋转连接装置

The problem of fixed-point motion of symmetrical rigid-elastic system in gravitational field is studied in this paper .

本文研究了怕 对称刚-弹 系统在重力场中的定点运动。

The theoretical and experimental surveys reported here show that the symmetrical lighting system is an efficient method to improving the contrast of image .

表明采用 对称 性照明 系统是提高水下影像衬度的一种有效方法。

In this paper a new kind of continuous reactive power compensation method which was suitable for 3 phase symmetrical power system was described and a controller was designed .

描述了一种适用于三相 对称 电网的连续无功补偿的补偿方法，并设计了适用于该方案的无功控制器。

This article studied and has realized in the symmetrical password system DES algorithm the male key password system RSA algorithm with emphasis and uses in the digital signature MD5 . algorithm has made the secure analysis .

本文重点研究并实现了 对称密码 体制中的DES算法、公钥密码体制的RSA算法和用于数字签名的MD5算法，作了安全性分析。

Key management of symmetrical cipher system on network communication

网络通讯中基于 对称密码 体制的密钥管理

Study on Designing Non symmetrical Gating System Using Superposed Method

用叠加法设计非 对称型浇注 系统的研究

The first order approximation of the primary resonance of a harmonically forced symmetrical piecewise linear system is derived by using KBM approach .

由 KBM法推出的分段线性 系统主共振的一次近似解，导出了分叉方程。

The symmetrical rigid frame system can be separated into single component to calculate reliable index .

对于 对称刚架 系统，可取半边结构将刚架化为单个构件的可靠度问题。

The Symmetrical Combination System with Two-step Orthogonal Toggle Force Amplifier and Hydraulic Cylinder with Two Rod-less Pistons

对称 式二次正交铰杆增力机构与双活塞无杆液压缸的组合 系统

Application of the Robust Symmetrical Number System to High Resolution Direction Finding Interferometry ; Master 's thesis

耐用 对称数字 系统用于高分辨率测向干涉测量/硕士论文

Based on the symmetrical component coordinate system this paper presents a partly decoupled method dealing with harmonic network .

基于 对称分量 理论，提出了一种电力 系统基波-谐波部分解耦的潮流算法。

Equations of motion are adopted for the symmetrical rigid rotor-bearing system and the nonlinear oil-film force of finite journal bearings is calculated .

采用单圆盘 对称刚性转子轴承 系统的运动模型和四阶龙格&库塔法，利用有限长滑动轴承的非线性油膜力，求解系统运动方程。

In the paper the symmetrical components of3-phase system are used for the analysis of unbalanced operation with emphasis upon the implication of sequence impedances .

本文阐明了利用三相 系统 对称分量的分析计算方法，着重分析了各序阻抗。

Distribution Harmonic Power Flow Models Based on Symmetrical Component Coordinate System

基于 对称分量 坐标的配电网谐波潮流计算模型

Global Topological Structure of Cubic Hamiltonian Symmetrical System

三次Hamiltonian 对称 系统的全局拓扑结构

Center or focus and limit cycles bifurcation on a class of 2n-1 degrees symmetrical system in the whole plane

全 对称2n-1次 系统的中心焦点与极限环分支

Design of coaxial symmetrical spherical optical system simulation model

共轴 对称球面光学 系统仿真模型设计

There have been some methods of eigen-sensitivities analysis but most of them aim at the symmetrical system and the research target system of the power system small signal stability is asymmetrical and non-deficient .

目前关于特征灵敏度的分析方法虽然有不少，但是大多针对 对称 系统，而电力系统小干扰稳定所研究的系统，是实非对称非亏损的系统。

The valve-controlled nonsymmetrical hydraulic cylinder math model different from the general valve-controlled symmetrical hydraulic servo system model is rebuilt with deducting and solving parameters of the system .

区别于经典的阀控对称液压缸 系统的建模方式，本文重新建立了阀控非 对称缸的数学模型，并对被试缸系统和加载系统各个参数进行了详细的推导和求解。

It is a symmetrical system that describes a pronunciation condition of the Chinese rhyme part that opening mouth and closing mouth is important and distinct characteristic of the phonetics quality .

开口呼与合口呼是描写汉语韵部发音状况的一 组 对称 系统，是语音性质的重要区别特征。

Based on the symmetrical component coordinate system using the method of additional nodal injection this paper presents a decoupling model of UPFC for the three phases power flow calculation .

基于 对称分量 坐标、用附加节点注入功率法，建立了统一潮流控制器（UPFC）在给定控制方式下计算三相潮流的三序解耦模型；

This paper carries on the simulation analysis for valve-controlled symmetrical cylinder system and valve-controlled asymmetrical cylinder system by using MATLAB / Simulink .

利用MATLAB/Simulink对阀控对称缸和阀控非 对称缸电液 伺服系统的离散非线性参考模型AMFC控制进行了仿真分析。

Application of truth matrix to analyze a logic circuit is intuitive and simple and the results may lead to the derivation of some identical relations of certain symmetrical ternary logic system .

应用真值矩阵分析逻辑电路具有直观、简便的优点，并可由其运算结果导出一些 对称三值逻辑 运算的恒等式。