例如，放置活化材料的一层，当它被光照时，便会释放电子，而电路层则负责传送电子流。

For example, one layer contains the active material that releases an electron when it's struck by light and another layer contains the circuit that carries the current.

youdao

例如，放置活化材料的一层，当它被光照时，便会释放电子，而电路层则负责传送电子流。

For example, one layer contains the active material that releases an electron when it's struck by light and another layer contains the circuit that carries the current.

youdao