查询词典 numerical system

Finally, by means of time evolution operator and numerical calculations, the time evolution of the atomic population, the atomic dipole squeezing, the time evolution of the squeezing and coherence properties of the light in the system of the two identical two-level entangled atoms interacting with the coherent optical field have been studied.

论文的第三部分工作是采用时间演化算符和数值计算方法，研究了两全同二能级纠缠原子与相干态光场相互作用过程中，原子布居、原子偶极压缩、光场的二阶相干和光场压缩性质的时间演化特性。

Proceeding by Bubnov-Galerkin method in combination with numerical method based on the quadrature formula the problem was reduced to a solution of a system of nonlinear integro-differential equations with singular kernel of relaxation.

根据Bubnov-Galerkin法，结合基于求积公式的数值方法，将问题简化为求解具有松弛奇异核的非线性积分－微分方程的问题。

In this paper,based on the characteristic of the tridiagonal matrix,the method of hypothetical coefficient is used for the numerical solution of tridiagonal system of linear equations,this method will be compared with the LU resolving

文章将根据3对角矩阵的特征，用待定系数法求解3对角线性方程组的数值解，并与常用的LU分解法从理论分析和数据实验两方面进行比较，结果表明，两者的时间复杂性前者稍差，而精度两者则相当，最

Moreover, some results about the stability of different numerical methods for the delay system are also itemized.

进一步，又对各种计算方法的数值稳定性进行了回顾，概述了各种常用的数值方法求解延迟微分方程所取得的理论结果。

The Company is engaged in numerical control system development, production of professional firms.

本公司是从事数控系统开发、生产的专业公司。

What are you to the evaluation of the function of system of current numerical control, price?

1您对当前数控系统的性能、价格的评价是什么？

To solve this one problem, developed a numerical control system that is based on industry to control the computer.

为解决这一新问题，开发了一套基于工业控制计算机的数控系统。

A simulation system of numerical control was introduced.

介绍了一种数控插补模拟实现的控制系统。

At first, a flexible mathematiical model describing pumping system and its numerical method is presented in this paper.

首先，本文描述了表示抽油系统的数学模型及其数值求解方法。

Especially, the development trend of numerical control system simulation is discussed.

从而得出结论：仿真技术是数控系统中是必不可少的手段，将会更加飞速的发展。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。