cut 在这里是什么意思? 关于焊接的。 Single-sided weldings can be made with unsupported root beads or by welding onto temporary backing bars. The second side of double-sided welds should be cold cut to birght,sound metal before welding is restarted. The second side cut for a sealing run might typically be 1-2mm deep by 2-4 mm wide. FCAW is suitable for positional welding.是指全位置焊吗?查看更多5个回答 . 5人已关注