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The construction of elementary and middle schools" teacher troop in rural places exists problems which mainly display in the short of population, the overweight of teachers"bear, the low quality of teachers overall, the somewhat low economic status of teachers, substitute teachers stil exist to exist and the insufficience of science and democracy of teachers control system. According to the extant problems, through ?

这些地方农村中小学教师队伍建设中存在的问题主要表现在教师人数短缺、教师负担过重、教师整体素质不高、教师经济地位偏低、代课教师继续存在以及对教师的管理制度不够科学不够民主等方面。

In this paper, problems found in using intermittent liquid bulkpolymerization to produce propylene were discussed, and the factors,which influenced the quality of polypropylene, were analyzed. A series ofmethods to solve the problems existed in the production of polypropylenewith intermittent liquid bulk polymerization were proposed.

本文对间歇式液相本体法聚丙烯生产工艺存在的问题及对聚丙烯产品的影响因素进行了分析，提出了一系列技术改进措施并应用装置生产中，促进了间歇式液相本体法聚丙烯的发展。

To deal with the shift problems and interpolation error problems caused by common image processing and geometric attacks, a local Tchebichef moments based robust image watermarking is developed.

5为了更好地解决由常规图像处理和几何攻击产生的移位以及插值误差等问题，提出了一种基于局部Tchebichef矩的鲁棒水印算法。

From the point of view of inverse problems in mechanics, two trains of thought for solving ICS/IBS computative problems, i. e: by means of intelligence computation method without geometrical modeling and by the aid of finite element inverse analysis method with geometrical modeling, are expounded.

从力学反问题的角度出发，阐述了智能桥梁结构的智能计算问题的两种思路——无模型力学反问题的计算智能法解决思路以及有模型力学反问题的有限元法解决思路。

The main contents include: Some preliminary theory (introduction to Sobolev spaces and variational formulations for differential equations); finite element methods for one-dimensional elliptic problems; the construction methods for general finite elements; error estimates for interpolation operators and inverse inequalities for finite element spaces; a priori and a posteriori error estimates for the finite element method for high-dimensional elliptic problems; some typical spectral methods for partial differential equations; error analysis for the spectral approximation for some linear and nonlinear partial differential equations.

主要内容有：准备知识（Sobolev空间的基本概念和主要结果，微分方程的变分描述）；一维椭圆型方程有限元方法；一般有限元的构造；插值算子误差估计和逆不等式；高维椭圆型方程的先验、后验误差估计；求解偏微分方程的几类谱方法；线性与非线性问题谱逼近的误差分析等。

Special attention should be paid when we apply the decomposition method to two-point boundary value problems, it is necessary to solve a algebraic system;It should be noted that a modification of inverse operator should be made when dealing with singular boundary value problems;Laplace transform and Pade approximants can be coupled to enhance the efficiency of the decomposition method.

比如，在求解两点边值问题时就需要特别注意，这时需要采用待定系数法，最后会涉及到系数方程组的求解；在处理奇异边值问题时需要重新定义逆运算；不少研究人员还把分解方法与Laplace变换和Padé逼近相结合来进一步提高分解方法的精度。

Then, the methods used for elastic mixed boundary problems, and the inverse integral transformation method may be employed to solve viscoelastic mixed boundary problems in time domain.

结合在求解粘弹性边值问题中的应用，对各类方法的特点进行了评述，并指出存在的问题及发展新的数值方法的研究重点。

Note that regularized problems are usually defined in an infinite setting and have to be discTetized for an implementation and there have been many comparatively adult methods of calculating singular system. Therefore, there is no need to avoid the calculation of singular system in inverse problems calculating of numeric value. Here TSVD Regularization Method is very simple and quite effective one.

考虑到反问题的数值计算需要将问题离散化，化为有限维的问题来进行处理，而对于有限维算子的奇异系的计算已经有了相当成熟的各种算法，因此在反问题的数值计算中没有必要避开奇异系的计算，此时TSVD正则化方法是十分简单并相当有效的正则化方法。

In this paper we consider three inverse boundary value problems: the high-dimensional Helmholtz equation and backward heat conduction problems on the bounded region and on the cylindrical region.

本文主要研究高维Helmholtz方程Cauchy问题和有界区域，柱形区域上的反向热传导问题这三类逆边值问题。

The second part(Chapter 4,Chapter 5 and Chapter 6)is devoted to freeboundary problems(inverse boundary value problems or geometric inverse prob-lems)for elliptic systems of partial differential equations in continuum mechanics.

第二部分(即第四章、第五章、第六章)讨论力学中椭圆型方程组的自由边界问题(也称逆边值问题或几何反问题)及数值分析，主要涉及到渗流与气体动力学中的一些问题。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。