diode
US /ˈdaɪ.oʊd/
UK /ˈdaɪ.oʊd/

1.
二极管
a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
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A diode is essential for converting AC to DC.
二极管对于将交流电转换为直流电至关重要。
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LEDs are a type of light-emitting diode.
LED 是一种发光二极管。