突触后致密区与突触可塑性的关系十分密切，对于维持突触发挥正常功能至关重要。

Postsynaptic dense area and the close relationship between synaptic plasticity are essential for the maintenance of synaptic function properly.

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每个神经突触都有拥有一系列蛋白，它们像机器的零件一样，结合在一起，搭建出一个被称为突触后致密区(postsynaptic density PSD)的分子机器。

Within each synapse is a set of proteins, which, like the components of an engine, bind together to build a molecular machine called the postsynaptic density - also known as the PSD.

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