查询词典 broken diagonal

A determinant in which all elements are zero except the elements of the principal diagonal and the elements immediately above and below this diagonal is called a continuant.

一个行列式除了主对角元素以及紧靠对角线的上面和下面的元素外，所有的元素均为零者叫做连行列式。

Some necesarry and sufficient coditions for generalized diagonal dominance for matrices are discussed by using the determinant and the closed convex cone generated by matrices column vectors. This paper, thus provides some new methoods for determining the generalized diagonal dominance in matrices.

利用矩阵的列向量所生成的闭凸锥及矩阵的行列式来讨论其行广义对角占优的若干充要条件，为判别矩阵是否为广义对角占优提供若干新方法。

In the proposed method the data from state estimation or power flows during larger time interval is used to calculate nodal voltages and the initial value of current transitive-relationship matrix; the variation of diagonal elements of this matrix reflects the variations of the detailed models of system components, network topology and parameters after the perturbation, then by use of the PMU measured data in millisecond level the primary diagonal element can be modified.

该方法采用时间间隔较大的状态估计或潮流数据计算节点电压和电流传递关系矩阵的初值，并利用该矩阵主对角元的变化反映受扰后系统各元件的详细模型、网络拓扑和参数的改变，然后使用相量测量单元毫秒级的量测数据对其进行修正，从而为在实际应用中将相量测量单元与SCADA系统相结合做出了有益探索。

A determinant whose only nonzero elements occur in square blocks centered about the principal diagonal is in block- diagonal form.

仅有的非零元素集中于主对角线的方块中的行列式是分块对角形式的。

Get the main diagonal of a matrix, or put a vector into the main diagonal of a matrix.

取得的主要矩阵，或将一个向量到对角线的主要矩阵对角线。

The method of diagonal processing is an important special case of the proposed method and the properties of the frequency spectrum of diagonal-sampled data are examined.

对角线信号处理法是本文所述方法的一个重要的特例，故对对角线采样数据的频谱进行了研究。

Based on genetic neural network and modal strain energy, a two-stage method for detecting diagonal crack s is proposed to identify the location, angle and depth of diagonal crack s in beams.

基于遗传神经网络与模态应变能，提出了一种斜裂缝两阶段诊断方法，识别梁体中斜裂缝的位置、角度和深度。

A new sequential step diagonal measurement method has been proposed based on the conventional diagonal measurement. In this method, the error in three axis directions can be divided 9 synthesis errors and they can be identified based on the values measured along four body diagonals.

通过对三个坐标轴方向的误差进行矢量分解，在现有的体对角线方法的基础上，提出了一种改进的分步体对角线测量方法，这种方法通过分步测量机床工作空间的四条体对角线可以快速获得分解后得到的9项位置误差。

Through drawing an equilibrium diagram with diagonal branch using independent path method, the instability of airflow in diagonal branch can be seen clearly.

应用独立通路法画出含有角联分支的通风网络平衡图，可以直观地看出角联分支风流不稳定的变化情况，从而为研究角联分支对通风网络的影响提供更有效的方法。

In this paper,the diagonal Cartesian method simulating the complex boundary, together with thetreatment to wetting-drying dynamic variation of the boundary, is applied into thetwo-dimensional shallow-water flows and sediment transport mathematical modeling,and their governing equations are discretized and solved in diagonal Cartesiancoordinates.

本论文采用斜对角笛卡尔坐标方法对不规则的复杂边界进行模拟，重点处理好干湿动边界的变化，并在斜对角笛卡尔坐标系中进行二维浅水运动的水流泥沙基本控制方程的离散和数值计算求解。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。