tacking weld meaning in Chinese

定位焊,定位焊接

Examples

1. minimum of three tack welds
   至少三处定位焊。
2. gmaw short-arc tack welds shall not be incorporated into the root pass
   熔化极气体保护焊-短弧点焊焊缝不能与根部焊道合成一体。
3. the minimal deformation of the structure is obtained using the method presented as follows : four web plates are first tack welded on both ends, and then the web plates are
   采用设计的焊接顺序在导弹油箱壁板实际结构上进行焊接并对焊后壁板变形进行了测量,测量所得的壁板变形规律与模拟计算结果吻合良好。