?里德二极管
里德二极管（Read diode）： 这种二极管具有p+-n-i-n+型式；在反向电压下，其中p+-n结势垒中的电场最强，很容易发生雪崩倍增现象。
Startled by the intense beam he generated when he rigged the diode to his bike generator, he recalls saying to his partner, "Good God,a child could read by the light of a single diode."
VOA : standard.2009.12.13
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