An external circuit provides a path for the electrons to return to the p-type material, producing an electric current along the way that continues as long as light strikes the solar cell.
此时接上一条外线电路，电子便通过线路流动到p层。只要光束持续地撞击太阳能电池，就会有持续的电流。
2
The second way to stretch a circuit is to make tiny islands of rigid silicon and connect them with wires that provide the flexibility.
第二种伸展电路的方法就是将极微小的硅用一根线连接起来，这种就能够保证一种柔性。
3
What better way to make a statement about your PC roots than to sport a ride caked with circuit boards?