Avian leukosis virus subgroup J (ALV-J) is a retrovirus which infects meat-type chickens.
亚群禽
毒(ALV-J)是一种主要感染肉用型鸡
反转录毒。
小组织
;型;
;, 同;
变量;Avian leukosis virus subgroup J (ALV-J) is a retrovirus which infects meat-type chickens.
亚群禽毒(ALV-J)是一种主要感染肉用型鸡反转录毒。
Considering the subnormal subgroups,some equivalent conditions for nilpotency of finite groups are given and a sufficient condition for nilpotency of finite groups is obtained.
研究次正规子群对有限群结构影响,得到幂零群若干等价条件和一个充分条件。
Let G be an infinite group. If G has a normal elementary abelian subgroup, then G is irrecognizable.
设G是无限群,若G存在正规初等交换子群,则G是不可分辨.
声明：以上
句、词性分均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件观点；若发现问题，欢迎向我们指正。
