問題詳情
1. 從事閥組與管件間銲口之點銲或銲接時，接地線應裝置於何處
(A)電銲機周圍之導電物
(B)任一可導通之處
(C)管件側
(D)閥組側。
(A)電銲機周圍之導電物
(B)任一可導通之處
(C)管件側
(D)閥組側。
參考答案
無參考答案
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