数值的

Chain index An index number derived by relating the value at any given period to the value in the previous period rather than to a fixed base.

环比指数指通过把某一时期的数值与前一时期的数值相比，而不是与固定基期相比而得出的指数。

Numerical simulations show that similar to their counterpart in deterministic nonlinear system some symmetry-breaking bifurcation may occur in the stochastic Duffing-Van der pol system, and Chebyshev polynomial approximation is an effective approach in solving dynamical problems of nonlinear system with random parameter.

数值模拟显示随机Duffing-Van der pol系统与确定性均值参数系统有着类似的对称破裂分岔行为，文中的主要数值结果表明Chebyshev多项式逼近法是研究非线性随机参数系统动力学问题的一种有效方法。

Through the research on COBWEB and CLASSIT,this paper presents a new representation method of numeric attributes.

本文在对COBWEB、CLASSIT等概念聚类系统研究的基础上，提出了一种用数值属性的聚类分划来表示数值属性的方法。

On the other hand, our method can deal with the problem with many singular points in complex domain by coupling with the FEM .

数值例子表明我们的方法在数值求解有裂纹或角点的复合材料问题时，是非常方便和有效的。

The convergence theorem of the neural networks algorithm and the theorem of numerical integration solution and its inferences are presented and proved.

摘要该文提出了一种基于三角基函数神经网络算法求解数值积分的新方法，提出并证明了神经网络算法的收敛定理和数值积分的求解定理及推论。

This paper uses the non-uniform grid model successfully to fulfill the requiremet of three-dimensional simulation modeling of the double post-hole convolute whose structures are complex.

成功地使用了非均匀网格模型，实现了对结构复杂的中心汇流区的三维数值建模；运用金属支撑杆模型，实现了负载的数值建模。

At the same time, numerical solutions of delay differential equation can also give birth to EPCA.

常微分方程的数值求解可以自然的产生EPCA，时滞微分方程的数值求解也可以产生EPCA。

Methods in this paper are also available to simulate three-dimensional two-phase detonation, and other twophase flow problems.

本文的方法可应用于三维两相爆轰的数值模拟，以及其他两相流问题的数值研究。

It gives the related explanations of the experimental results and points out the further studying direction in this field.

将数值模拟结果与理论设计数值进行了对比，表明该计算结果是可信的，计算模型和所生成的网格是合理的。

However, to establish global convergence for these latter methods, one must enforce either sufficient decrease conditions (the Armijo-Goldstein-Wolfe conditions)or a fraction of Cauchy decrease condition - all of which rely on explicit numerical function values, as well as explicit approximations to the directional derivative at the current iterate.

但是，为了保证后面方法的全局收敛，必须有足够的减少条件（Armijo-Goldstein-Wolfe条件）或者部分柯西减少条件——它们全都依赖于外在的数值函数值，就和在当前迭代逼近方向导数一样。

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。