(A)SAW:潛弧銲 (B)CAW:碳級電弧銲 (C)AHW:原子氫電弧銲 (D)TIG(GTAW):惰氣鎢級電弧銲
(A)SAW 潛弧銲接
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139.下列何種電弧銲接法之電極為消耗式? (A)SAW (B)CAW (C)..-阿摩線上測驗