<span><span style、" font-family: 宋体;">电弧电压</span></span>
<span><span style、" font-family: 宋体;">焊接层数</span></span>
<span><span style、" font-family: 宋体;">焊接电流</span></span>
<span><span style、" font-family: 宋体;">焊接电阻</span></span>
<span><span style、" font-family: 宋体;">焊条直径</span></span>