mathematical group
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美
[网络] 数学组
双语例句
- A Theorem About the Mathematical Structure of Renormalization Group Equation
关于重整化群方程数学结构的一个定理 - Solving nonlinear differential equation is one of the best difficult field in applied mathematics and mathematical physics, but Lie group is a better tool on it This paper will describe software package Lie symmetry of solving ordinary and partial differential equation realized by using REDUCE language.
求解非线性微分方程是应用数学和数学物理中最艰难的领城之一，而Lie群则是这方面强有力的工具。本文描述REDUCE语言实现的求常、偏微分方程Lie对称的软件包。 - A systematic mathematical model group has been developed to simulate the billet section temperature distribution, austenite structure evolution and products properties.
开发了用于模拟高碳钢高速线材生产过程中断面温度分布，奥氏体组织演变和产品性能的系统数学模型组。 - Mathematical Model for Temperature Control in Hot Strip Finishing Mill Group
带钢热精轧机组机架间冷却控制数学模型 - Based on the median theorem and the diffraction principle, a novel mathematical model for particle group size distribution was presented in which the actual size distribution of particle group can be expressed equivalently with finite kinds of single size particle group.
通过分析粒子群的Fraunhofer衍射环的能量分布情况，从中值定理出发，建立了以有限种等效单径粒子群组合来确定实际粒子群粒径分布的数学模型。 - In this paper the mathematical model of bubble group noise are introduced under the arbitrary conditions by using the method of Euler.
本文采用空间点观点的处理方法，得出任意给定条件下，群体空泡噪声的数学模型。 - The set of molecule symmetrical operation meets the definition of mathematical group.
分子的全部对称操作的集合完全符合数学群的定义。 - This paper describes a mathematical model for the problem of marshalling single group freight trains at technical stations in a network with a number of constraints. An heuristic algorithm and a branch-and-bound algorithm are proposed for the model.
本文对路网上技术站多种能力约束下的单组列车编组问题建立了整体性数学模型，并提出了一种启发式算法和一种分枝定界算法。 - The group encryption communication and group signature-authentication of power system with above characteristics are put forward. The mathematical structure of group encryption communication system, encrypt-decrypt algorithm and the generation methods of group secret key, group public key are given.
文中提出具有这些特征的电力系统集团加密通信与集团签署认证系统，给出了集团加密通信系统的数学结构，加密解密算法和集团秘密钥匙、集团公开钥匙的生成方法； - After it, the Referential Uniform Reduction Method is to be applied. Special defects and defacements could be introduced into the mathematical model of the structure, and a group of the load-displacement curves representing different states of imperfections were obtained.
其次，应用参考统一折减法，能够将一定的损伤缺陷引入结构有限元计算模型，得到对应于不同损伤缺陷程度的一组结构荷载位移曲线。