查询词典 diagonal form

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。

Ventilation network are commonly used in series, parallel and diagonal form of three kinds of basic connectivity, they are combined with each other constitute a complex ventilation network.

通风网路常用的有串联、并联和角联3种基本联接形式，它们相互组合构成复杂的通风网路。

At last, in Chapter 7, the author establishes the theory on global exact boundary controllability for first order quasilinear hyperbolic system of diagonal form and applies it to one-dimensional isentropic flow system.

最后，在第七章，本文对齐次的一阶拟线性对角型双曲组实现了整体精确能控性，并在一维等熵流方程组得到了应用。

At the end, the author establishes the global exact boundary controllability for first order quasilinear hyperbolic systems of diagonal form, taking the one-dimensional isentropic flow system as an example.

本文的具体安排如下：首先在第一章，作者简单介绍了精确能控性的定义以及相关问题的研究历史与现状。

The diagonal form of implicit approximate factorizated NND difference scheme is used to solve the three-dimensional compressible Navier-Stokes equations.

本文采用计算效率较高的标量对角化隐式NND格式，通过求解Navier-Stokes方程对影响再入体表面热流计算准确的诸因素进行了综合分析。

That is, if ''Q'' is special orthogonal then one can always find an orthogonal matrix ''P'', a change of basis, that brings ''Q'' into block diagonal form

就是说，如果''Q''是狭义正交的，则你可以找到改变基的一个正交矩阵''P''，把''Q''带回到分块对角形式

Artists pay great attention to the relationship between shape and color, the warm and close-range, the vision of the cold gray contrast, have had a deep sense of space, the rock block diagonal form and different compositions, resulting in the avalanche and the dynamic atmosphere of terror .

画家十分注意造型与色彩的关系，近景的暖色与中、远景的冷灰形成对比，产生了纵深的空间感，块状的山岩造型及不同斜线的构图，造成了雪崩的动感与恐怖气氛。

Numerical model tests show that the method proposed by this paper is as accurate as nine-point finite-difference when permeability tensor is in diagonal form, and it can simulate more complicated cases when permeability is in full-tensor form.

CVFE网格是非正交网格，本文混合运用有限差分和有限元方法计算折算压力梯度，得到与有限差分和PEBI网格不同的离散形式，提出了根据流量符号判定上游的方法，使模型更为合理。

Numerical model tests show that the method proposed by this paper is as accurate as nine-point finite-difference when permeability tensor is in diagonal form, and it can simulate more complicated cases when permeability is in full-tensor form. Its application prospect is more extensive in fine detailed reservoir simulation.

模型计算表明，对于形式简单的对角渗透率张量，本文方法可以与九点差分格式相比，精度是可靠的，并且该方法还能模拟完全各向异性渗透率张量，对于精细油藏数值模拟，其应用范围将更为广泛。

In the aspect of multivariate modeling, three forms of multivariate GARCHSK model includes vector form, diagonal form and simplify form, are put forward and compared. The famous dimension disaster exists in multivariate GARCHSK model also. Based on Independent Component Analysis, multivariate volatilities of conditional higher moments are estimated through IC-GARCHSK model, which make dynamic relation of higher moment risk between multi-assets to be possible.

鉴于多元 GARCHSK 模型存在严重的"维数灾难"问题，基于独立成分分解技术提出 IC-GARCHSK 模型，给出多元条件高阶矩波动率的估计方法，使得同时度量多个资产高阶矩风险之间动态关系成为可能，为利用组合投资方式分散高阶矩风险的影响奠定了方法论基础。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。