查询词典 definite

The property of extended sub-positive definite matrix is studied further by means of the method of matrix analysis to obtain the lower estimated Oppenheim inequality of Hadamard multiplication determinant to two extended sub-positive definite matrices under more general conditions and improve the past in the adaptation range and estimated exactness.

用矩阵分析的方法，通过对广义次正定矩阵性质的进一步研究，得到了更一般条件下的两个广义次正定矩阵的Hadamard乘积的行列式下界估计的Oppenheim不等式，在适用范围和估计精度上都改进了已有的相应结果。

System speaking of the Master CAM, first must establish the components the geometry model, according to the components actual size, draws its processing part the contour line, does not need to draw the entire components the model, guaranteed the computation production the cutting tool way coordinates accuracy, and may use the Master CAM Chinese Library level the function, when determination cutting tool way, transfers or the hideaway, the selective treatment needs contour line; Next, the formulation processing craft and the definite craft parameter, chooses the cutting tool, the processing semi finished materials, the work piece origin of coordinates again and so on, establishes the work piece coordinates system, definite work piece coordinate system and engine bed coordinate system relative size, thus obtains the components processing correct cutting tool way; Finally, the simulation function which system provides using the Master CAM, the realization simulation processing.

对于Master CAM系统而言，首先要建立零件的几何模型，根据零件的实际尺寸，画出其加工部分的轮廓线，无需画出整个零件的模型，以保证计算生成的刀具路径坐标的正确性，并可利用Master CAM中图层的功能，在确定刀具路径时，加以调用或隐藏，来选择加工需要的轮廓线；其次，制定加工工艺并确定工艺参数，再选择刀具、加工毛坯、工件坐标原点等，建立工件坐标系统，确定工件坐标系与机床坐标系的相对尺寸，从而得到零件加工的正确刀具路径；最后，利用Master CAM系统提供的仿真功能，实现模拟加工。

At last the consistently symmetrical and positive definite properties between the energy matrices and the elastic matrices are clarified by using the theory of positive definite quadratic form of matrices.

最后，运用矩阵的正定二次型理论阐述了"能量矩阵与弹性矩阵"之间一致的对称性和正定性。

The second part includes the definition of positive definite function and conditional positive definite function, the basic form of Radial Basis Function interpolation, the correctness of the inversion of the interpolation matrix, the error estimate based on Kringing function.

主要包括径向基函数的相关定义，基本的插值形式，插值矩阵的可逆性，以Kringing范数为基础的径向基函数插值的局部误差估计和径向基函数插值边界附近的情况。

In order to change the situation, this article is to give the definition of an axiomatic generalized real positive definite matrices and make analysis into some of the quality of generalized positive definite matrix under the new definition.

为改变这种现状，本文给出一种公理性的广义正定矩阵的定义，并对新意义下广义正定矩阵的若干性质进行了分析和研究。

In this paper, what happens to the inequality when the positive definite matrix is allowed to be positive semi-definite was considered.

本文进一步推广王松桂等的结论，对于半正定Hermite阵，给出了推广的Wielandt不等式的矩阵形式。

This paper discusses the ways in the problem of generalized characteristics in vibration to convert rigidity matrix or quality matrix into positive definite matrix when they are positive semi-definite matrix.

讨论振动中的广义特征问题的刚度矩阵或质量矩阵为半正定阵时如何使其转化为正定矩阵。

In chapter one, we give the definition of the sub-generalized positive definite matrix,study the inverse problem of matix eqution AX = B on the sub-generalized positive definite matrix.

第一章，给出了次广义正定矩阵的定义，进而研究了矩阵方程AX=B在次广义正定矩阵类上的反问题解。

Gave the concept of generalized positive definite matrices for the first time in 1970, the scholars, after 39 years' tough research, have put forward many more generalized positive definite matrix and acquired huge achievement.

首次给出广义正定矩阵的概念以来，学者们历经39年的艰苦研究历程，产生了许许多多更加广义的正定矩阵，获得许多丰富的研究成果。

With the premise of that valid chip forming area (the valid uniplanar inductive area of capacitance sensor) keeps stable, experiment results showed that with the definite forming height and density of chip when the moisture content varied in ranges of 5% to 25% were definite, the moisture content was exponent function as measuring frequency; when the moisture ranged in 25% to 45%, there was linear relationship between measuring frequency and moisture content of chip.

在刨花的有效铺装面积保持一定(即为电容传感器的有效平面感应区)的前提下，试验表明：当刨花的铺装高度和密度一定时，刨花的含水率5≤MC＜25％，测试频率与刨花的含水率成指数关系：刨花的含水率25≤MC＜45％时，测试频率与刨花的含水率成线性关系。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了