1) open subgroup
开子群
2) A group of children dispersed.
一群孩子散开了。
3) sub-cluster
群子
1.
Studies on the Relationship of Mechanical Properties and Micro-morphology and
Sub-cluster Parameters of High Toughened and Strengthened PPO/PA6 Alloy;
高强高韧PPO/PA6合金的力学性能—亚微相态—群子参数之间关系的研究
2.
Studies on the Relationship of Combustibility and Mechanism of Combustion and
Sub-cluster Parameters of Flame Retarded PET and Its Fibers;
阻燃PET及其纤维的燃烧性能—燃烧机理—群子参数之间关系的研究
3.
In order to describe all types of viscosity-composition curves of polymer
blends wihh mathematical model, sub-cluster equations were derived on the basis
of "sub-cluster theory".
为用统一的数学模型对高分子合金的粘度-组成曲线进行描述,运用群子理论的基本概念,推导出了不同形式的“群子方程”。
4) subgroup [英]['sʌbɡru:p] [美]['sʌb'grup]
子群
1.
Directed subgroup graph for studying the subgroup properties of finite groups;
利用有向子群图研究有限群的子群性质
2.
Relation between direct sum group and subgroup of direct sum group;
直和群及其子群之间的关系
3.
Study on structure of subgroup of direct sum group;
直和群的子群结构的研究
5) subgroups
子群
1.
The Existence of Nilpotent Hall π Subgroups;
幂零Hall π-子群的存在性
2.
Because the inverse of Lagrange theorem of finite group is not hold,it is
difficult to determine all the subgroups of A_n,to determive whether An has the
same order subgroups for any positive factor of the absolute value of |An|.
由于有限群的L agrange定理的逆不成立,当n较大时,要确定n次交代群An的所有子群,以及对于An的任一正因数,要确定A
n是否有这个阶数的子群都要较困难的,文章通过计算5-循环置换各次方幂,再把各次方幂中的第4个数字去掉,得到4个2×2置换的乘积,从而构造出A
5的6个10阶子集,并证明了每个子集是A5的子群。
3.
Using Lagrange s theorem and the concept of n-letters symmetric group,we have
Proved the only existence 30 certainly subgroups of the 4-letters symmetric
group S4, getting rid of 2 normal subgroups, it has 9 2-order cyclic subgroups
, 4 3-order cyclic subgroups,3 4-order cyclic subgroups, 4 Klein 4-elements
groups 4 S4 (at the time of isomorphic meaning), 3 8-elements groups and 1 A4.
使用Lagrange定理及n次对称群的基本概念证明了4次对称群存在且只存在30个子群,并给出了每个子 群。
6) subpopulation [英]['sʌb,pɔpju'leiʃən] [美][,sʌbpɑpjə'leʃən]
子群
1.
New Two-subpopulation Particle Swarm Optimization Algorithm
一种新的双子群PSO算法
2.
Particle Swarm Optimizer (PSO) with the idea of SSMPSO (shuffled subpopulations
and mutation PSO) was improved.
提出一种子群混合与变异的微粒群算法
(SSMPSO),按适应值大小将微粒均匀分为两个子群分别进行目标优化,当子群在一定进化代数内未满足收敛条件时重新混合为一个种群。
补充资料：一群
1.表数量。用于成群的人或动物。 2.古国名。《晋书．四夷传．裨离等十国》:"一群国去莫汗又百五十日，计去肃慎五万余里。其风俗土壤并未详。"