翻译:有系数g的上同岛 同义词1)cohomology group with coefficients g,有系数g的上同岛2)cohomology group,上同岛3)PI2s 2048kbit/s PDH path layer,具有G.704的125μs同步帧4)P31s 34368kbit/s PDH path layer,具有G.832的125μs同步帧5)oriented homology group,有向同岛6)cellular cohomology group,胞腔上同岛