With the total current in the system, you can expand the equivalent circuit back to its original form.

系统中的总电流允许您将电路扩展到其原始形。

We used Ohm's Law to go from an equivalent circuit to solving for every current value and voltage drop in the system.

我们用欧姆定律电路到系统中每个电流值和电压降的解决方案。

So we think that the same equivalent circuits that we see today in different areas of the palaeum, were present in the last common ancestor.

因此， 我们认为， 在今天不同外层区域所见到的相同电路，在最近的共同祖先中就已经存在。