在过去的一个世纪中，白炽灯泡一直为人造灯源的基本产品；但现在，耗能惊人的白炽灯泡注定将被由半导体驱动的发光二极管(LED)所替代。

After a century as a primary source of artificial light these energy-guzzling bulbs are set to be replaced by light-emitting diodes (LEDs), powered by semiconductors.

youdao

源-测量单元还可以测量其它的二极管参数，包括正向电压降和击穿电压。

The Source-Measure Unit can also test other diode parameters, including forward voltage drop and breakdown voltage.

youdao

理想PV电池的模型可以表示为一个感光电流源并联一个二极管。

An ideal PV cell can be modeled as a light-induced current source in parallel with a diode.

youdao