變換群 Save Sign in to save words Simplified: 变换群 biànhuànqún ㄅㄧㄢˋ ㄏㄨㄢˋ ㄑㄩㄣˊ transformation group math. Character by character 變(biàn)change 換(huàn)exchange 群(qún)group A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0