double butt strap 双搭板 ; 双接贴板
double butt strap joint 双向搭板接合 ; 双对接搭板接合 ; 两面搭板接合
riveted double butt-strap joint 铆钉双复板对接接头
double butt strap seam 双衬板对接缝
double U butt joint 带钝边U形对接接头
double-butt strap 对接双衬板
double butt needle 双踵织针
two-double butt welds 双层嵌套焊缝
double head butt 双人头锤
The principle, applications and process of TANDEM double wire welding for butt welding in shipbuilding were introduced.
介绍了TANDEM双丝焊在造船拼板焊接中的原理、应用和工艺。
BT20 titanium alloy is welded with butt welding on GTAW machine... Experiment of plastic deformation is done on press and double heat preservation measure is used during plastic deformation.
试验采用钨极氩弧焊对接焊形式对BT 20钛合金施焊；焊接接头的塑性变形试验在油压机上进行，变形过程中采用了双保温措施。
By two double-mediate layer method, using developed welding materials and technology of forced arc molding, butt joining tests of high manganese steel with rail steel are completed.
采用两种过渡层方法，使用研制的过渡层焊接材料，结合强制成形电弧焊工艺进行了高锰钢辙叉与钢轨双过渡层对接焊试验。
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