焊接接头分类，焊接接头（焊缝）类型，焊接接头系数。
综述了焊接接头匹配的三种类型及其利弊。
Three types of strength matching of welded joints for different steels were reviewed.
如果应用于 1 英寸板厚的焊接接头 ，以下焊接符号表示的是什么焊缝类型?。
If applied to a 1 in thick weld joint, the welding symbol below describes what type of weld?
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