Күн бұрын什么是火线,零线和地线(最清晰易懂的零火地线的讲解)(Hot Neutral Ground Wire, What is the difference) Рет қаралды 8,504DMX Electric (加拿大电工师傅) 1 1 Easy and clear explanation of Hot, Neutral and Ground Wire in North AmericaЖүктеу
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