The equivalence relation on a finite set is an important relation, which relates to the partition on the set.
有限集上等价关系是一个重要的关系，它同集合的划分有着密切的联系。
Generally speaking, there are few profound discussion and research on the partition and covering of finite set.
关于有限集合上的划分与覆盖，一般很少讨论和研究。
The equation is discretized by discontinuous Galerkin finite element method, that is approximating functions being discontinuous at the nodes of partition in time.
利用间断时空有限元方法对方程进行离散，即允许近似函数在时间节点处是间断的。
Method of finite element partition, modeling procedure of finite element method, modeling process of triangle unit and quadrangle unit are detailedly introduced;
有限单元分割的方法和有限元方法建模的步骤，重点介绍三角形单元、四方体单元的建模过程；
Furthermore, as an application of the characterization, the authors give the distance formula for the finite-partition sub-module.
进而，作为该刻画的一个应用，文中给出有限分划子模的距离公式。
Through this model and using finite temperature field theory, we can write down the partition function of the system.
通过这一模型加上虚时温度场论就可以写出核物质系统的配分函数。
Finite element method (FEM) was used to partition the area of buried cables with outer heat sources and calculate the temperature field with given cable load.
利用有限元法对有外部热源的直埋电缆区域进行剖分，计算了给定电缆负荷的温度场。
In this paper, we consider a quadratic Lagrangian finite element equation arising from discretizations of 3d elliptic problem with jump coefficients under any tetrahedral partition.
本文针对带有间断系数的三维椭圆问题，讨论任意四面体剖分下的二次拉格朗日有限元方程的代数多重网格法。
In this paper, we consider a quadratic Lagrangian finite element equation arising from discretizations of 3d elliptic problem with jump coefficients under any tetrahedral partition.
本文针对带有间断系数的三维椭圆问题，讨论任意四面体剖分下的二次拉格朗日有限元方程的代数多重网格法。
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