Semi - symmetric spacelike hypersurfaces in de sitter space 空间中半对称的类空超曲面
Half - symmetric unstable resonator 半对称非稳定共振器
. pn 6 plastics - half symmetric fitting guillemin system with locking ring . nominal pressure pn 6 带锁紧环的半对称配件
A regular and edge - transitive graph which is not vertex - transitive is said to be semisymmetric 半对称图是指正则,边传递,但点不传递的图。
A simple undirected graph is said to be semisymmetric if it is regular and edge - transitive but not vertex - transitive . this thesis consists of two parts 如果一个简单的无向图是正则的,边传递但不是点传递的,那么称它是半对称的。