第三个积极的改变会将更多的关注集中在那些卓有成效的项目上—即使有些自发性种族活动带来的正面效益要经过很长时间才会被发现。
The third positive change is a sharper focus on which projects are delivering results—even if the benefits of some community initiatives might take years to become apparent.
但是，这些自发性大脑活动波动的功能意义尚不清楚。
However, the functional significance of these spontaneous brain activity fluctuations remains unclear.
脑电信号是从头皮表面记录到的脑细胞群的自发性电活动。
Electroencephalogram (EEG) is the spontaneous electrical activity recording of brain cells from scalp.
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