短語詞組短語group of congruence classes [數(shù)]同余類群unitary group band congruence 酉群帶同余the smallest group congruence 最小群同余rectangular group congruence 矩形群同余Fuzzy Group Congruence 模糊群同余the least group congruence 最小群同余right group congruence 右群同余rectangular group congruence pair 矩形群同余對 返回 group congruence