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。
He was just sort of interested in getting the Apple II on a printed circuit board so he could have one and be able to carry it to his computer club without having the wires break on the way.
他只是有点在获得在印刷电路板上的苹果II感兴趣，所以他能有一个和而无需电线上休息的方式能够履行了他的电脑俱乐部。
Common always circuit design are two ways, one is internal clock way, another way to external clock way.
常见的始终电路设计有两种方式，一种是内部时钟方式，另一种方式为外部时钟方式。
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