问题
多项选择题
用水冷却焊枪的目的是（）
A.降低工件温度
B.强迫焊缝成形
C.防止焊枪过热
D.可大电流连续焊接
答案
参考答案：C, D
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用水冷却焊枪的目的是（）
A.降低工件温度
B.强迫焊缝成形
C.防止焊枪过热
D.可大电流连续焊接
参考答案：C, D
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