• 1. weld backing: 焊接衬垫 | 焊缝衬垫 | 焊缝垫 | 焊缝背衬垫
• 2. backing weld: 打底焊 | 底焊焊缝 | 打底焊道 | 垫板焊
• 3. nonfusible weld backing: 非熔性焊接背垫

更多释义

• 1.The laser beam melts a portion of the steel core and the segment backing metal, forming a weld.
  激光光束熔体部分钢铁核心和后盾金属部分，形成焊缝。
  dict.yoduao.com
• 2.Welding methods and technology of narrow gap quirk backing weld were discussed. Indirect quirk backing weld using manual hydrogen arc welding is considered as the best result.
  讨论了窄间隙深槽打底焊焊接方法和工艺，认为用手工氩弧焊进行单面深槽打底焊效果最好。
  dict.yoduao.com
• 3.Basic flux-cored wire for backing weld to T91 tube was studied in this paper.
  研究了用于T91钢管打底焊的碱性渣系药芯焊丝。
  dict.yoduao.com

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