夜间进入极盖区后，电子密度则很低。
The electron density is much lower at night in the polar cap areas.
研究发现，与正常人相比，TLE患者静息时海马、颞极、额叶、颞叶、丘脑及楔前叶等脑区与后扣带回的功能连接增强。
Compared to normal controls, it found that the hippocampus, temporal pole, frontal lobe, temporal lobe, thalamus and precuneus exhibited more significant functional connectivity with the PCC in TLE.
等离子体片中的粒子被加热和加速后，注入近地空间，产生环电流和极区亚暴。
The particles are heated and accelerated in the plasma sheet, and then injected into the near earth space, and produce the ring current and auroral substorm.
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