圈基的英文

cycle basis

• 圈:    circle; ring
• 基:    base; foundation
• 余圈基:    cocycle basis

例句与用法

1. Cycle bases structure of outerplanar graphs
   外可平面图的圈基结构
2. Minimum cycle bases of outerplanar graphs on the projective plane
   射影平面上外可平面图的最小圈基