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判斷題

焊接結(jié)構(gòu)成品在涂油漆前應清除表面的鐵銹、氧化皮、飛濺等污物

答案：正確

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判斷題

焊接設備的電氣線路圖上的每個字母、符號都表示著某一電氣裝置。

答案：正確

判斷題

采用溶焊方法無法使鋼與鋁及其合金焊接在一起

答案：錯誤

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