mathematical group
英
美
[网络] 数学组
双语例句
- A more accurate physical image and mathematical formula is presented to calculate negative group velocity dispersion generated by a pair of prisms a wedge lens in femtosecond laser.
给出了精确计算楔形镜与棱镜对组合系统群速度色散量的物理图象和数学表达式。 - This papers studies regulars of the wall temperature distribution for the sin-gle radiation tube and the flue gas temperature change when varying the preheating temperature of air and flame length by means of mathematical model The regulars of performance change for radiation tube group are studied.
本文以数学模型为手段，研究了在不同空气预热温度、不同火焰长度下单辐时管壁温分布规律及烟气温度变化规律，同时研究了在不同参数下群辐射管性能变化的规律。 - 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。 - By using genetic algorithm, the solution of optimal mathematical model for the project group is studied. The single-object optimal programming is extented into multi-object genetic algorithm.
利用遗传算法对项目群优选数学模型的求解进行了新的探索，并在单目标遗传算法程序的基础上，拓宽为多目标遗传算法。 - 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。 - With the methods of documentary data, experiment, and mathematical statistics, the elements among multiple element group training method are introduced.
采用文献资料、实验、数理统计等研究方法，简介多元组合训练法的要素。 - Based on the semi-analytical solution of Hamilton canonical equation, a new mathematical model for the vibration characteristics of a group of double-shell structures is proposed.
以Hamilton正则方程的半解析法为基础，为一类双壳结构的振动特性提出了一种新的数学模型。 - In this paper, by analyzing the existing schemes of group key distribution, we propose a mathematical model for scalable secure group key distribution schemes, and the dynamic security of group key distribution is formally defined based on this model.
通过对现有的群密钥分配方案分析，该文提出了可扩展的安全群密钥分配方案的数学模型，基于该模型形式地定义了群密钥分配的动态安全性。 - 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 - The Mathematical Model of Bubble Group Noise
群体空泡噪声的数学模型