A new process of high speed seam welding with secondary rectification for doubleseam possesses good weld quality, high welding speed, smooth bead and low consumption features.
双缝高速次级整流缝焊是一项新工艺，具有焊接质量好、焊接速度快、焊缝表面光洁及能耗低等优点。
2
Metods A total of 36 patients with duodenal injuries used doubleseam, duration rinse exude and generalization treatment after operation .
方法：对36例十二指肠损伤患者采用双层缝合持续冲洗等综合治疗。
3
The heating and other technical characteristics as well as procedure parameters are introduced in this paper for bicycle wheel - tyre doubleseam high speed welding.