其结论应对实际工作中的外电路设计有指导作用。

Its conclusion should be guiding on the external circuit design in the actual work.

当电池充电时，电子被迫从外电路的阴极流向阳极，离子则回到阳极。

During recharging, electrons are forced round the circuit in the opposite direction, and the ions, perforce, return whence they came.