差

The residual is generated with the method based on mathematical model and an improved sequential probability ratio test is put forward for failure detection to decrease the time used for residual-judge.

用基于模型的方法获取故障状态下的系统残差，并用一种改进的时序概率比检验进行残差判决，缩短了残差判决的时间。

In other words, on the basis of known low space resolution multi-spectral image and high space resolution panchromatic spectral image, it will simulate to create high space resolution multi-spectral image.

针对这一应用目的，本文在对现有的定性定量指标分析的基础上，设计了一组适合本文的评价标准，就是在目视判读的基础上，采用平均梯度和小波能量分析融合影像和原始未降解的多光谱影像的空间分辨率差异，采用标准方差、标准偏差和协方差矩阵行列式值分析融合影像和原始未降解的多光谱影像的信息差别，采用均值、中值和归一化最小方差分析融合影像的光谱信息保持程度。

A grating function and a groove function are introduced to determine the structure of a concave grating. Basic ideas for the design of a flat-field concave grating with three stigmatic points are proposed. As a proof of the usefulness of these design approaches, image conditions of the grating with three stigmatic points are developed which concise with other published results and they are more general than those obtained from holographic gratings.

采用与分析三维光栅相类似的级数展开法给出了二维集成凹面光栅的球差、彗差的计算方法，计算中用光栅函数和槽面函数来描述具有任意形状和任意变化周期的光栅，提出了一种具有三个无像差点的平面场型凹面光栅的设计方法，利用该方法推导了三点无像差光栅的成像条件，与文献中用其它方法获得的结果相一致，该结果与全息光栅的成像条件相比，更具一般性。

In the present paper, the Properties of the symmetric difference of the sets are systematically researched, the essence of the symmetric difference of the several sets is revealed in terms of disjoint resolution of the set, the formula of the measure calculation with respect to the symmetric difference of the several sets is given.

本文深入地对集合的对称差进行讨论，研究了它的性质，通过集合的不交分解揭示了若干个集合的对称差的本质，给出了关于集合的对称差的测度计算公式。徐州师范大学！徐州；221009；中国矿业大学北京校区！北京；100083

Therefore, a new method is presented to mend the existing data processing methods with the application of the theory of robust estimation.

为此，通过应用抗差最小二乘法，笔者提出了大坝监测数据处理的抗差多元回归模型，阐述了其建模的机理、步骤，同时还可利用该法的权重进行粗差检测。

He expressions of the various order of Trilemma constant are given, in which the seventh-order Trilemma constant can be used as a criteria of the deflection aberration correction at large deflection angle The high resolution display tubes with large deflection angle makes more demands on deflection sensitivity.

rilemma效应是偏转系统实现自会聚的一个重要判据，对高级偏转像差的校正，需要考虑高阶Trilemma效应的影响，本文从多极场偏转像差校正理论出发，应用区域分割的方法，对直至七阶的Trilemma效应进行了分析，给出了各阶Trilemma常数的表达式，其中七阶Trilemma常数可以作为大偏转角偏转像差校正的判据。

Trilemma effect is an important criteria for the self-convergence deflection system.The influence of the higher order Trilemma effect should be taken into account for the correction of the higher-order deflection aberrations.In this paper,when up to the seventh-order Trilemma constants are adjusted,the expression of the influence of 2n-pole multipole field on n-th order Trilemma constant has been deduced and this influence has been calculated.

Trilemma效应［1，2］是在彩色显像管中应用自会聚偏转系统对偏转像差校正时所必须考虑的一个重要问题，在大偏转角下对高级偏转像差的校正必须考虑高阶Trilemma效应的影响，文献［3］应用多极场偏转像差校正理论［4，5，6］，采用区域分割的方法，对直至七阶的Trilemma效应进行了分析，在文献［3］中对Trilemma效应分析时，用到了下面的近似

Structure of Managerial Compensation and Dispersion of Firm Value;2. It is considered that the errors compose of the true value error,systematic error and dispersion .

对煤炭资源勘查资源量与客观物质量之间差值的误差理论探讨，提出误差由真值误差、系统误差和离差3个基本部分组成，其中真值误差是不可消除的观测误差、系统误差是控制网度所决定的准确度标准、而离差是由地质构造及矿床形态的多解性产生的资源量波动。

During the process of establishing the schemes, it reveals the limitations in analyzing the truncation error and the reasons of the difficulty in improving numerical precision.

在格式构造过程中指明了截断误差分析的局限性以及用有限差分格式构造高精度差分格式的真正困难所在，并对常见的几种差分格式从新的角度进行解释分析。

But it suffers from the following two shortcomings:(1) the object detected by instantaneous difference is inherently interfered by "virtual shadow" noise;(2) the interior detection of an object might be partly lost whenever the grey scale is quite uniform.

文章提出基于两次差分之间相关性的"复合差分法"，实现了对"虚影"的消除，并提出一种判定最优差分间隔的策略，减少了目标漏检，使目标检测的完整性得到了显著提高。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失