Laser welding has seen countless applications over the last two decades due to its attractive properties such aslow heat......

本文叙述了水套炉中，传统蛇形气盘管在盘管弯头制作，盘管焊接、 盘管焊缝无损探伤的困难，及其对采油采气井场安全的影响。提出了螺肇......