Polyhedra with seven vertices are rare . 具有七个顶点的多面体是稀少的。
The formation of polyhedral cages and clusters has only recently been recognized as an important and widespread phenomenon . 多面体的笼状和簇状结构的形成只是最近才被认为是一种重要而又普通的现象。
This leads us to another contribution of leonhard euler to graph theory, namely euler's polyhedron theorem or simply euler's formula . 这是我们引向L尤拉对图论的另一个贡献,即尤拉多面体定理,或简称尤拉公式。
Strictly extreme points and polyhedral normed spaces 严格端点与多面体形赋范空间
3d polyhedron recognization based on the difference of grey scale 基于灰度差的三维多面体识别