grounding prong
/ˈɡɹaʊndɪŋ ˈpɹɒŋ/
n
English · grounding prong中文 · 接地插脚Español · contacto de conexión a tierraFrançais · contact de terre
意味：Device connecting a circuit’s ground wire, which allows the current to be conducted to the ground connection in the event of a short circuit.