電阻隻有0.7歐，電表的兩級直接接觸也是0.7歐，是不是說明保險管的電阻是零？

來源: JellyJelly 於 2017-02-03 23:08:26 [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.