Read Edit View history 置换群 zhìhuànqún permutation group Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 置换群/置換群 · zhìhuànqún · permutation group 2026/03/04 置换群 / 置換群 zhìhuànqún permutation group permutation group (mathematics) 置换群是群论中的一个核心概念。 created sense Mar 4, 2026, 02:25 AM