结论碘缺乏子代大鼠学习记忆力低下与尾核内乙酰胆碱系统的功能障碍有关。

Conclusions the poor learning and memory is related to the dysfunction of cholinergic system of CN in GIDR.

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译：原子内的电子在离核不同的位置上绕核运动，在 某些原子中对离核最远的电子只有很微弱的力将其束 缚在原子内。

Electrons of atom have orbits at different distances from the nucleus. For some atoms the electrons in the farthest orbits have only weak forces binding them to the atoms.

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