更改

The order of the sandpile group is again the determinant of <math>\Delta'</math>, which by the general version of the [[Kirchhoff's theorem|matrix tree theorem]] is the number of oriented [[spanning tree]]s rooted at the sink.

The order of the sandpile group is again the determinant of <math>\Delta'</math>, which by the general version of the [[Kirchhoff's theorem|matrix tree theorem]] is the number of oriented [[spanning tree]]s rooted at the sink.

沙堆群的顺序又是<math>\Delta'</math>的行列式，根据[[矩阵树定理]]的一般版本，它是根在沉没顶点的有向[[spanning tree]]生成树的数目。

沙堆群的阶又是<math>\Delta'</math>的行列式，根据[[矩阵树定理]]的一般版本，它是根在沉没顶点的有向[[生成树]]生成树的数目。

   

   

  ==[[用户:Zcy|Zcy]]（[[用户讨论:Zcy|讨论]]）The order of the sandpile group翻译存疑。==[[用户:Zcy|Zcy]]（[[用户讨论:Zcy|讨论]]）

  ==[[用户:Zcy|Zcy]]（[[用户讨论:Zcy|讨论]]）The order of the sandpile group翻译存疑。==[[用户:Zcy|Zcy]]（[[用户讨论:Zcy|讨论]]）