In theory, this could one day provide a key component of any nanoscale electrical circuit-a way to mechanically turn the current on and off or change its direction.

理论上讲，这种机械切换电流通断或方向的方法，或许有一天会成为任何纳米尺度电路的关键元件。

youdao

The transistor, when fully saturated, could turn a circuit on or off, and then could be used to control an electrical circuit or store information in an electrical circuit.

当该晶体管时完全饱和，能把一个电路打开或关闭，然后可用于控制一个电路的工作，或者将信息存储在一个电路。

youdao

When you turn on the switch, the circuit closes.

当你打开开关时，电路就闭合。

youdao

Everything, all of the electronics on the vehicle itself, every component had its own solid-state circuit breaker so that we could turn things on and off, and control what was happening.

ENGADGET: Art Thompson, Red Bull Stratos' technical project director, talks circuit breakers, wind shear and biomedical data

Each were equally unfamiliar with the 3.4-mile, 20-turn circuit, and much attention was paid to an imposingly steep hill and sharp left turn on the northeast section of the course.

FORBES: The Hottest Drivers In Formula One