So by manipulating the control wire, one could open or close the circuit.

因此通过操作控制线路我们就可以打开或闭合电路。

The control wire is like the faucet handle.

就是水龙头的把手。

The control wire connects to a coil of wire inside the relay.

控制线连着继电器里的线圈。

In a relay, there is a control wire that determines whether a circuit is opened or closed.

在继电器中，有根决定电路是否闭合的控制线。

In this case, the control wire attaches to a " gate" electrode.

控制线连到一个" 门" 电极。

You can think of the control wire as an input, and the wire coming from the bottom electrode as the output.

您可以将控制线视为输入，将来自底部电极的电线视为输出。

When you apply electricity to the control wire, it lets current flow through from one electrode, through the transistor, to the other electrode.

当你给控制线通电时，它会让电流从一个电极流过， 通过晶体管流到另一个电极。

A transistor is just like a relay or vacuum tube - it's a switch that can be opened or closed by applying electrical power via a control wire.

晶体管就像继电器或者真空管——它是一个开关，可以通过向控制线施加电源打开或关闭。