weldite白硅铝钠石weldv.焊接；使结合n.焊接；焊缝welded disc turbine rotor焊接转子welding robot workstation机器人焊接工作站welding reticulated shell焊接网壳welding positioner roller焊接定位滚轮welding with flux backing焊剂垫焊welding and cutting torch焊割两用气焊枪welded drive axle housing焊接桥壳welding residual stresses焊接残余应力welding parameters window接头性能weld - screw connection栓焊连接