the incidence graph x(i) of a projective plane is a bipartite graph.
提出了一种由产品关联图自动生成产品装配优化序列的方法。
all the phase diagrams on the projective plane are given.
并给出了射影平面上的所有相图。
the conjugacy of virtual elements on projective plane was deeply discussed in this paper, and a few conclusions on the conjugacy of virtual elements were arrived at.