An electric field created by adding impurities to the silicon splits the electron-hole pairs apart, which results in an electric current.
给分离的硅参入杂质电子区域就产生电子空穴对分离从而形成电流。
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Another thing, we'll have to drill a hole in the wall for the electric wires.
还有一件事，我们将不得不为电线在墙里面钻一个洞。
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This article introduces principle and process of electric sparking micro-hole working, analyses hardware and software function of this control system, and presents the aspects which need improving.