研究人员称，即使在入睡状态下大脑活动相对会弱些，但是两种状态下的大脑活动却十分相似。
The brain activity was similar, if weaker during sleep, the researchers said.
把相似的活动归类到一起。
而狗也表现出了相似的梦中活动。
所以，身体摆动手臂能导致相似的智力活动从而解决问题。
So the physical act of arm swinging led to a similar mental solution.
知识活动的核心环节与生物发酵过程具有很大的相似性。
The core of knowledge action is familiar with bio logic ferment.
管理的活动和领导的功能有很多相似之处。
There are many activities of management which are similar with the function of leadership.
活动中心：相似的活动的集合。
Activity Center: a collection of similar activities in one place.
活动中心：相似的活动的集合。
Activity Center: a collection of similar activities in one place.
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