查询词典 symmetric difference

Pages: 444 This landmark among mathematics texts applies group theory to quantum mechanics, first covering unitary geometry, quantum theory, groups and their representations, then applications themselves—rotation, Lorentz, permutation groups, symmetric permutation groups, and the algebra of symmetric transformations.

页： 在数学正文中的444这标志建筑物把群论用于量力学，首先包括单位的几何学，量子理论，组和他们的表现，应用themselvesotation，洛伦茨，换变组，匀称换变组和匀称的转变的代数的然后。

Based on the structure of Wollaston prism, a new design of symmetric beam splitting prism is given. From reforming the end surface of o light, we can get symmetric beam splitting.

基于Wollaston棱镜的结构，给出了对称分束偏光棱镜的一种新的设计，即通过修正 o 光束的出射端面来实现对称分束。

Based on the structure of Wollaston prism, a new design of symmetric beam splitting prism is given. From reforming the emergent end surface, we can get symmetric beam splitting.

基于Wollaston棱镜的结构，给出了对称分束偏光棱镜的一种新的设计，即通过修正光束的出射端面来实现对称分束。

In this paper, we first introduce the concepts and structures of generalized per-symmetric matrix, generalized centro-symmetric matrix or generalized bisymmetric matrix.

本文介绍了广义广对称矩阵、广义中心对称矩阵以及广义双对称矩阵的概念及结构，研究了这些特殊矩阵集合中，矩阵方程AXB=C及矩阵方程组A_1XB_1=C_1，A_2XB_2=C_2的迭代解法，同时考虑了相应的最佳逼近问题。

Based on English definition of the six properties which a relation R defined on a set A and utilizing the logical characteristic of implications, two aspects of ordered-pair and the matrix MR are considered, and the properties of the R is analyzed one by one. A few useful conclusions are summarized as determining the properey of the R. The following collections are also analyzed between reflexive and irreflexive, symmetric and antisymmetric, symmetric and asymmetric and among irreflexive, antisymmetric and asymmetric.

根据定义在一个集合A上的关系R的六个性质的英文定义，利用蕴含式的逻辑特点，从有序对和关系R的矩阵M两个角度对每个性质逐一进行分析，得出在判定关系R的性质时可用的结论，并且分析了自反性与非自反性之间、对称性与反对称性之间、对称性与非对称性之间、非自反性和反对称性以及非对称性之间的联系。

In Chapter Ⅳ, it discussed convex games, symmetric games and monotonic symmetric games.

第四章研究了凸对策、对称对策和单调对称对策。

The acceleration profile of the crane motion is designed to induce minimum payload pendulation during transpo rt,while the deceleration stage is designed to ensure freed om of residual oscillation near the end of the transport,and to deliver the payload at the target point.The techniques induce payload pendulation at least one half ofan oscillation cycle or integer multiples during each of the acceleration and deceleration stages.Starr(1995)designed a symmetric two-step acceleration and deceleration profile to transfer a suspended object.The duration on the constant acceleration steps is assumed to be negligible relative to the period of the payload oscillation.A linear approximation method of the oscillation period is used to generate the two-step symmetric acceleration profile.

3.1投入成型技术，各种形式的投入shapers ， convolved参考命令，产生形投入指挥，驾驶起重机提出一套距离沿一套path.the加速度概况起重机议案旨在诱使最低载重pendulation期间transpo rt ，虽然减速阶段，目的是确保freed om残余振荡接近尾声的运输，并交付载荷到达目标point.the技巧诱使载荷pendulation至少一半ofan振荡周期或整数倍数。

One of them is called polydisperse symmetric diblock copolymer. In this system it contains three length-different subcomponents, all of the subcomponents are symmetric.

模拟的结果表明：无论是体系链长的多分散性还是链段比例的多分散性均可影响体系自组装所形成的形貌结构和相区尺寸。

Objective: To examine changes in gene expression profiling of peripheral blood mononuclear cells in type 2 diabetes patients with distal symmetric polyneuropathy as compared to type 2 diabetes patients without distal symmetric polyneuropathy and to healthy controls.

目的：利用基因芯片技术比较2型糖尿病伴有远端对称性多神经病变的患者、2型糖尿病不伴远端对称性多神经病变的患者以及正常个体外周血单个核细胞基因表达谱的差异。

Methods: We used a 5075 gene cDNA microarray to examine gene expression in peripheral blood mononuclear cells from two type 2 diabetes patients with distal symmetric polyneuropathy, two type 2 diabetes patients without distal symmetric polyneuro...

采用包含5075个功能已知人类基因的cDNA芯片检测2名2型糖尿病并发远端对称性多神经病变患者，2名2型糖尿病不伴远端对称性多神经病变患者以及2名年龄和性别匹配的正常个体外周血单个核细胞基因表达谱。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。