( )若用熔接棒本身為　(A) 焊料　(B) 電極　(C) 填充物　(D) 熔劑　電弧產生於電極和工作物之間，電極為消耗材，熔化後即為填料，所以稱之為金屬電極鈍氣電弧熔接。

問題詳情

( )84.若用熔接棒本身為　
(A) 焊料　
(B) 電極　
(C) 填充物　
(D) 熔劑　電弧產生於電極和工作物之間，電極為消耗材，熔化後即為填料，所以稱之為金屬電極鈍氣電弧熔接。

參考答案

答案：B
難度：適中0.601695
統計：A(32),B(71),C(9),D(6),E(0)

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