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

double head butt 双人头锤

double butt strap riveting 对接双面盖板铆接