treble riveted butt joint

例句：

1. 1. Theengineer used a treble riveted butt joint to reinforce the roof structure.
   工程师使用三重铆接肩部接头加固了屋顶结构。
2. 2.The carpenter applied a triple riveted butt joint to the door frame for added strength.
   木匠在门框上应用了三重铆接肩部接头以增强其强度。
3. 3. The construction crew was tasked with installing a treble riveted butt joint in the floor joists.
   建筑工队被指派安装三重铆接肩部接头在地板上的梁上。