试题与答案

焊料焊接时若火焰控制不好,两个焊件的温度高低悬殊时最易发生() A.假焊 B.流焊

题型:单项选择题 A1型题

题目:

焊料焊接时若火焰控制不好,两个焊件的温度高低悬殊时最易发生()

A.假焊

B.流焊

C.焊件移位

D.焊件变形

E.焊接不牢

答案:

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