multi-station automatic nut cold header

例句：

1. 1. Themulti-station automatic nut is acrucial component in the construction of large bridges.
   多站点自动螺母是建造大型桥梁的关键部件。
2. 2. The cold header has been usedto cool down the airflow in theengine compartment.
   冷接头被用来冷却发动机舱内的气流。
3. 3. The engineers carefully installed themulti-station automatic nut and coldheader to ensure proper functioning of thesystem.
   工程师们仔细地安装了多站点自动螺母和冷接头，以确保系统的正常运行。