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小小少
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樓主  發(fā)表于: 2012-04-15 20:20
圖片：
我知道此物是把交流變成直流的，可是他們有的說(shuō)叫直流電源，有的說(shuō)叫開(kāi)關(guān)電源，有區別么?
jiangx
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1樓  發(fā)表于: 2012-04-23 18:57
開(kāi)關(guān)電源

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