查询词典 countable infinite set

Although the infinite Toeplitz matrix can not be dealt with the methods for finite matrix, it is found that its spectral is continuous by a series of pertinent elementary transformations for infinite matrices.

虽然这类矩阵不可以用有限阶矩阵的方法处理，但通过一系列相伴的初等变换，发现它们的特征值是连续变化的，获得特征向量的递推公式，从而得到这些算子的谱的连续性的一个直观证明。

We analyze the essence of affine reconstruction and prove the sufficient conditions that a reversible matrix can be an infinite plane homography matrix and we can not uniquely decide an infinite plane homography matrix from fundamental matrix.

详细分析了仿射重构的本质，证明了可逆矩阵为无穷远平面单应矩阵的充分条件，以及从基本矩阵无法唯一确定无穷远平面单应矩阵。

By solving a axial-symmetrical boundary value problem consisting of a infinite solid and an isolated spheriodal particle embedded in an infinite matrix, some interesting results are found as follow:(1) at the micron scale, the smaller the particle is, the higher the stresses at the matrix/inclusion interface and within the particle are;(2) this size effect is more remarkable with decreasing the stress triaxiality and increasing the remote equivalent strain.

通过对三轴应力下含椭球夹杂的无限大体边值问题的分析，结果表明：(1)在微米尺度下，夹杂尺寸越小，夹杂/基体界面的法向应力、剪切应力和夹杂内部主拉伸方向的应力越高。

This concentration, however, does not represent the transition from potentiality to actuality, from the infinite to the finite; for it took place within the infinite itself in order to produce the.

这种集中，但并不代表潜力过渡到现状，从无限到有限；因为它发生在无限的自己，以便产生。

In the past, the infinite now resides, In the future, with the infinite point now

无限的过去，都以现在为归宿；无限的将来，都以现在为起点

Based on the basic solutions of the pressure response of point source in infinite space, pressure responses at any point in a horizontally infinite reservoir are studied.

以无限空间点源压力响应的基本解为基础，研究了水平方向无限大油藏在任意位置的压力响应，从测压点位置、等价压力点、多解性的解决办法等方面探讨了水平分支井的试井解释方法。

Pi, expressed as an infinite series and an infinite product.

丕表示，作为一个无穷级数和无穷乘积。

After Yahoo of afterwards of morning paper dispatch and Netease roll out the free mailbox of infinite quantity, business of operation of email of domestic old brand 263 high-key roll out industry the enterprise mailbox product of first infinite capacity -- 263 enterprises mailbox.

晨报讯 继雅虎和网易推出无限量的免费邮箱后，国内老牌电子邮件运营商263高调推出业界首家无限容量的企业邮箱产品——263企业邮箱。

There are infinite forms, infinite understandings, but the progression is one.

有无限的形态，无限的理解，但演进只有一种。

Infinite sequences appear in a fundamental way in the theory of infinite series.

在无穷级数理论中，无限序列是一个基本的概念。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。