查询词典 problem

The well-known invariant subspace problem is A long-standing problem in operator theory,which has been to determine whether every operator $T$ on a Banach space $X$ must have a nontrivial invariant subspace.

不变子空间问题是一个尚未解决的问题， Enflo反例所给出的没有不变子空间的算子不为任何算子的共轭。

TRIZ is a method that helps people to take the process of solution problem to be more scientific.It provides a correct research direction inventively to solve problem.

TRIZ是将人们思考问题、解决问题的过程科学化，并为问题的创造性解决提供正确的探索方向。

In the second Chapter .the LQ optimum control inverse problem and parametric condition and parametric form of the inverse problem solution nave been introduced simply.

第二章简单介绍了LQ最优控制逆问题及解的可参数化条件和参数化形式。

Further, in order to reconstruct flow real-time image, inverse problem is transferred to a linear system of equations by simplification based on reasonable suppose, which solves the technical problem of data processing and flow image reconstruction.

再之，根据图像重建实时性要求，通过简化反问题并将之转化为离散化线性问题，解决了测量数据处理和流动图像重建的方法技术问题。

In addition,the problem that matrix elements are too large to inverse matrix appears in process of applying the algorithm,the solution to the problem is also given in this article.

另外，对于应用该算法的过程中出现的矩阵元素过大而无法求逆的问题，也给出了解决的办法。

Firstly, the diffusion theory and the definition of forward problem and inverse problem in optical imaging are introduced.

论文首先介绍了光在组织中的传播理论，阐述了光学CT成像的正向问题和逆向问题。

Firstly, the strict-feedback nonlinear systems with unknown virtual control coefficients bi have been studied and the problem of its inverse optimality has been solved, that isThe new solvable theorem of inverse optimal gain assignment problem has been proposed through the method of modular design for the original system.

本论文的内容安排如下：第一部分把上述严格反馈系统进一步推广为具有未知虚拟控制系数bi的严格反馈系非线性统并研究其逆最优问题，即第二部分对于推广之前的系统利用模块设计方法提出新的逆最优增益配置定理。

The forward problem is solved using a finite element technique in two dimensions that is a foundation of the inversion problem.

正演计算是电阻率反演成像的基础，本文从二维有限元基本理论出发，完成了高密度电法的二维有限元正演模拟程序，为后期多方法反演奠定了基础。

Genetic algorithm for regularize inversion is designed, which can avoid linearization difficulty in the nonlinear problem and solve the ill-posed problem in magnetotelluric inversion.

设计了基于正则化反演的实数编码混合遗传算法，避免了非线性问题的线性化困难，并较好的解决了大地电磁测深反演的不适定性和非唯一性。

However, in regression model if there are features that are not completely relative or even completely irrelative to the problem, the difference of features' correlative degree to the problem becomes large and it may affect the performance of support vector regression machine.

基于统计学习理论的支持向量回归机有比较好的泛化能力，然而当样本含有与该问题不完全相关甚至完全无关的特征时，会使得各个特征对问题的相关程度差异很大，从而使得支持向量回归机的效果受到影响。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。