en echelon joint

例句：

1. 1. The soldiers formed a line in the center of the field, with each man holding an en echelon joint.
   士兵们在场地中央排成一行，每个人都握着一个纵队连接点。
2. 2. The engineers carefully placed the joints to ensure a smooth flow of water through the pipes.
   工程师们小心翼翼地放置接头，以确保水流通过管道时顺畅无阻。
3. 3. The team worked together to develop a joint plan for the project, considering all stakeholders' needs.
   团队共同努力，为该项目制定了一个综合计划，充分考虑了所有利益相关者的需求。