我在这里实际上指的是在所有的所谓“散在群”(sporadic groups)中，最大的被赋予了“魔群”名字的那一个。我认为魔群的发现这件事本身就是有限单群分类中最叫人兴奋的结果了。
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sporadic simple groups 散在单群 ; 零散单群
All the sporadic groups had been found, and the classification was shown to be complete.
所有的零星群都被发现，分类也完成了。
These did not seem to belong to large families, but were isolated examples, and so became known as sporadic groups.
由于它们是一些孤立的例子，无法归入大的类中，因而被称作零星群。
Other groups practice sporadic demonstrations of compassion or affection right in the middle of desperate conflict or abusive episodes.
其它小组实践慈心或喜爱的分散示范在绝望冲突或虐待情节中间。
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