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[請問]一個電壓量測的問題
Apr 13th 2015, 15:42, by sweetjane 

請問如圖檔的插座有DC 24V與12V兩個位置
一般正常是直接電錶接+24V與0V得到24V
接12V與0V得到12V

如果我用電錶跨接24V與12V
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