家庭电路中,引入一根火线和一根零线构成一个回路,那么灯泡和插座可以共用一根火线吗? 知乎 Template




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Try and sketch some of theseLasagna, Opossum, Whale, Potion, Bolo tie, Yeast, Gown, Sheep, Doctor, Wedding, view more ideas


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tomski家庭电路中,引入一根火线和一根零线构成一个回路,那么灯泡和插座可以共用一根火线吗? 知乎 coloring