群

Then the thesis defines a communication matrix for the group that includes the three key factors of every email user.

相互拥有通讯地址的用户群形成一个相对稳定且独立的邮件群组，论文先为群组定义了一个通讯频率邻接矩阵，并借助该矩阵建立了一个可以迭代的离散模型。

Suppose G_1 is solvable,is it true that G_2 is necessarily solvable?Some authors who work on group theorem study the topic of influence on the number of maximal order on a finite group to study the Thompson\'s Problem nondirectly.

一些群论工作者从群的最高阶元的个数出发来研究有限群，侧面对Thompson问题进行了研究，得到了一些令人鼓舞的结果参见文献[10]，(来源：3dABC论文网www.abclunwen.com[11]，[12]，[13]，[14]，但是，至今没有人对J.G。

In this scheme weak voltage area are determined by the network sensitivity index method; Considering the relation between low voltage level and voltage collapse, it is put forward that the voltage magnitude variation rate is taken as the observed information for the grouping of weak voltage buses and weak voltage grouping are given; Taking geographic factors into consideration, a fuzzy maximal tree is established to group the weak voltage buses. The method to measure the incomplete observability of buses and the flow chart of PMU configuration are given.

应用网损灵敏度法来判断电压崩溃临界点和电压薄弱区域；考虑低电压水平与电压崩溃的关系，提出将电压幅值变化率作为电压薄弱母线分群所观察的信息，并且给出了电压薄弱分群指标，兼顾地域因素，采用模糊最大树聚类法将电压薄弱母线分群；给出了母线非完全可观测程度的度量方法以及 PMU 的配置流程。

Three millitre vein blood was taken from the subjects and the levels of antibody to serogroup A and C of meningococcus were determined.

结果化州健康人群A和C群流脑抗体阳性率分别为85.86%和13.61%；A群和C群抗体几何平均滴度分别为1：7.12和1：1.13。

Authors suggest that uranium ore formation occurred after the appearance of the above subsidiary tectonic units, and sandstone bodies of the Ⅱ,Ⅲ,Ⅳ,Ⅶ cycles, Shuixigou Group in the southern syncline, and sandstone bodies of the Ⅰ,Ⅱ,Ⅲ,Ⅴ cycles, Shuixigou Group, as well as sandstone bodies of Xiaoquangou Group in the northern monoclinal zone, they are ...

文章认为铀成矿作用发生在这些次级构造单元形成之后，且具有找矿前景的是南部向斜带水西沟群第Ⅱ、Ⅲ、Ⅴ、Ⅶ旋回砂体和北部单斜带水西沟群第Ⅰ、Ⅱ、Ⅲ、Ⅴ旋回砂体及小泉沟群砂体。从容矿层位连续性、分布面积、砂体特征及层间氧化带发育特征等成矿条件看，北部单斜带铀成矿条件和找矿前景均优于南部向斜带。

Furthermore, the information dissemination of several topologies is analyzed theoretically, and the statistical properties of canonical topologies and varying neighborhood topology are analyzed from graph theory.

针对传统粒子群优化算法中全连接型拓扑和环形拓扑的特点，引入了一种粒子群信息共享方式——多簇结构，进而基于多簇结构提出了动态可变拓扑策略以协调动态概率粒子群优化算法的勘探和开采能力，并从理论上分析了最优信息在各种拓扑中的传播，同时从图论角度分析了几种经典拓扑以及动态可变多簇结构的统计特性。

We obtain some results on solvability and nilpotency of finite groups by the 9— pairs of 2—maximal subgroups.

利用2-极大子群的θ-子群偶得到了一系列有限群可解，幂零的结果。

In particular, Bryce, Fedri, Serens and Guo( [2]and[8]) have studied thenilpotent length of the groups in NF \ φ, where φ is the class Y of allsupersoluble groups or the class Nr of groups with nilpotent length ≤r.

特别是，Bryce，Fedri和Serens以及郭([2]和[8])对N~FΦ中的群的幂零长度作出了研究，其中Φ是所有超可解群类Y，或者是幂零长度≤r的群类。

This new semigroup extende the nonlinear semigroup of Lipschitz operator.

这种算子半群是在非线性算子半群的基础上提出的，是对非线性Lipschitz算子半群的进一步扩展，使它的范围更加扩大了。

Coleman automorphism occurred first in the study of the normalizer Nu of G in the units U{RG of RG.

Coleman自同构始于研究有限群G在群环RG的单位群U中的正规化子。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！