weldv.焊接;使结合n.焊接;焊缝
welding die焊接夹钳
welded tuff凝灰溶岩,溶灰岩
welded line焊缝
weld stress焊接应力
welding are电弧
welds crack焊接裂纹
weld defect焊接缺陷
weld holder焊接架
welds types焊接类型
welded tube焊缝管,焊管,焊接管,电焊管