查询词典 definite

Introducing to a set of partitioning technique, the limit element stiffness matrix is broken up into some parts having clear and definite meanings.

空间结构线性及非线性分析，好的计算策略和迭代方法固然重要，但刚度矩阵的精确性同样起到举足轻重的作用，刚度矩阵的精确度不仅影响到计算结果的。。。

An ordinary definite integral is defined over a line segment, whereas a line integral may use a more general path, such as a parabola or a circle.

普通定义的积分是定义在一段线段上的，而线积分则用更一般的路径，像拋物线或圆。

A particular spectrum line corresponds to a certain definite light wave length.

某特定的谱线就代表一个确定光的波长。

This paper investigates alternating iterative method and generalized alternating method for the solution of a large linear system, extend the convergence theorem and comparison theorem for generalized or alternating iterative method when the coefficient are Hermitian positive definite systems.

本文主要研究了大型线性方程组的交替迭代法及迭代法的各种变形，给出了当系数矩阵为Hermitian正定矩阵时各类迭代法的收敛原理及其相应的比较理论。

The classic iterative ones need special characters of the coefficient matrix; CG has over linear convergence, but the coefficient matrix is positive definite; Krylov subspace ones can deal with non-symmetric linear systems, but sometimes it must face"collapse"problems.

经典迭代法的收敛需要由系数矩阵的一些特定性质来保证；共轭梯度法具有超线性收敛性，但是系数矩阵必须是正定矩阵；Krvlov子空间法可用于非对称矩阵问题，但可能出现崩溃现象。

Lyapunov second method is applied to analysis of partial stability of equilibrium of linear ordinary differential equation with constant coefficients, the problems on partial stable matrix, partial positive definite matrix and Lyapunov matrix equation are studied.

将Lyapunov第二方法用于研究常系数线性系统零解的部分变元渐近稳定性，可引出相关的一些特殊矩阵问题，包括部分稳定矩阵、部分位正定矩阵、矩阵方程的可解性等。

The main achievements of this dissertation are as follows: Let W be a nonsingular matrix. 1. Problem I and Problem II are considered under the matrix set S is as the following: 1 the set of real W-symmetrizable matrices; 2 the set of real W-symmetrizable nonnegative definite matrices; 3 the set of real W-symmetrizable matrices on the linear manifold.

对于问题I和问题II，本文就S是W可对称化矩阵集合、W可对称非负定化矩阵集合以及线性流形上W可对称化矩阵集合等三种情况进行了研究，分别给出了这三种情况下问题I的解存在的充分必要条件，以及解集合的通式表达式，给出了这三种情况下的最佳逼近解，并提供了相应的数值算法和数值实例。

The first is refered to the vibration model with retardation for the market equilibrium price, where the knowledge of the second order linear ordinary differential equation is used. The second is refered to the optimal pricing model of the price under the frame of the social welfare, where the concept of the definite integral is exploited.

第一个是研究市场调节下平衡价格的阻尼振荡模型，使用了二阶线性常系数微分方程的课程知识；第二个是在引进社会福利因素时商品的最优定价模型，使用了定积分和微分法的课程知识。

And HGF were reduced in mouse of liver metastasis with cancer, which may intervene the liver metastasis; Shensanqi extract had some definite function on the primary cancer of spleen and liver metastasis of rats with liver metastasis of cancer, the platelet exerted key functions in cancer hyperplasia, infiltration and metastasis.

18和HGF的水平降低，可能干预了肝转移的过程，参三七醇提液对荷瘤肝转移大鼠的脾脏原发肿瘤的生长和肝转移有一定抑制作用，血小板在肿瘤增殖、浸润和转移中起着重要作用。

Result］ Under blood stasis, it can to some extent inhibit the production of primary cancer, the serum IL18 and HGF were reduced in mouse of liver metastasis with cancer, which may intervene the liver metastasis; Shensanqi extract had some definite function on the primary cancer of spleen and liver metastasis of rats with liver metastasis of cancer, the platelet exerted key functions in cancer hyperplasia, infiltration and metastasis.

结果］在血瘀状态下，可在一定程度上抑制原发肿瘤的生长，荷瘤肝转移小鼠血清IL18和HGF的水平降低，可能干预了肝转移的过程，参三七醇提液对荷瘤肝转移大鼠的脾脏原发肿瘤的生长和肝转移有一定抑制作用，血小板在肿瘤增殖、浸润和转移中起着重要作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。