They make contact with the non-metal part of an electric circuit (those protein wires).

它们与路的非金属部分（那些蛋白质线）接触。

SHERI FINK: But electricity is all about circuits.

谢里·：是与路有关。

Dopamine is intimately involved in that circuitry.

多巴胺与该路密切相关。

GREENFIELD: This reward circuitry is as old as time.

GREENFIELD：这个奖励路与时间一样古老。

This is known as an ammeter, and it measures the current in Amperes by connecting in series with the circuit.

这被为流表，通过与路串联来测量安培流。

First, you'll notice that the magnetic field coming from our wire is parallel to the circle at every point.

首先，您会注意到来自我们导线的磁场在每个点都与路平行。

And unlike a digital circuit an electron can be doing all sorts of things at once.

与路不同，子可以同时做各种各样的事情。

When they reach the anode, these ions are united with electrons supplied by the external circuit and lithium atoms are thus re-formed.

当它们到达阳极时，这些离子与外部路提供的子结合，从而重新形成锂原子。

There's an enormous number of circuit-building methods that I'd love to go over with you, but we're going to stick to the basics, which you'll use in every circuit problem you'll encounter.

我很乐意与您讨论大量路构建方法，我们将坚持基础知识，您将在遇到的任何路问题中使用它们。

But since the current must divide equally into each of the different paths, we're left with two bulbs that have the same amount of current flowing through them that the single bulb circuit had!

是因为流必须在每条不同的路径中平均分配，所以两个灯流过的流与单个灯路的流相同！

But since the current must divide equally into each of the different paths, we’re left with two bulbs that have the same amount of current flowing through them that the single bulb circuit had!

是由于流必须平均分配到每条不同的路径中， 所以我们只剩下两个灯泡， 它们流过的流量与单个灯泡路的流量相同！