查人人中国名人网中专类艺术学校:翻译句子
来源：百度文库 编辑：查人人中国名人网 时间：2024/04/29 17:05:12
群是一个具有特殊二进制运算的结合，这一运算满足结合律，并具有逆元和一个单位元
The group has a special principle of binary operation which meets the law of association, co-existing an element and a reversed one.
用which连接比较符合英语习惯．
The group is has the special binary operation the union, this
operation satisfies the associative law, and has the inverse element
and single
Group has special binary operation, the operation satisfies the associative law, and has inverse element and identity element.
楼上的单位元翻错了