然而，即使对于本原群，其次轨道的决定也是一个非常困难的问题，它依赖与人们对抽象群本身结构的了解和一些组合方法的应用。
However, such a problem is very difficult in general, even for primitive groups and it depends heavily on the understanding of abstract groups and the application of combinatorial tools as well.
另外，也研究了富足半群的本原元。
In addition, we also consider primitive elements of abundant semigroups.
认为造成这两大派别学术分歧的根本原因之一是攻、补两派医家所诊治患者群的不同。
The author believes that the main reason for the divergence of the two schools lies in the different patient groups they treated.
本文根据大系统分解协调方法的基本原理，建立了水电站群优化调度模型。
An optimal operation model for group function of hydropower station is set up based on the basic principle of decomposition-coordination for big system.
依据模糊群子论的基本原理，导出了水泥体系粒径分布的群子本征方程，并计算得到水泥体系的群聚度。
The sub cluster intrinsic equation for the cement particles size distribution was derived on the base of fuzzy sub cluster theory.
在介绍蚁群算法基本原理以及探讨该算法的缺陷基础上，针对多处理器任务调度问题，提出了一种基于改进型蚁群算法的调度策略。
After the basic theory of ACA is introduced, a multiprocessors scheduling policy based on an improved ant colony algorithm is proposed in this paper.
丁坝(群)附近的局部流场变化是引起丁坝局部冲刷的根本原因。
Local directional change of the flow field in the vicinity of spur dike would result in local scouring of spur dike.
将蚁群算法的基本原理用到物流配送网最短路径搜索中，对降低配送成本有重要意义。
The basic theory of ant colony algorithm is applied to shortest path search in the logistics network of distribution for reducing the cost of logistic distribution.
将蚁群算法的基本原理用到物流配送网最短路径搜索中，对降低配送成本有重要意义。
The basic theory of ant colony algorithm is applied to shortest path search in the logistics network of distribution for reducing the cost of logistic distribution.
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