capping metal

例句：

1. 1. The engineer carefully capped the metal parts together to ensure they fit perfectly.
   工程师小心翼翼地将金属部件夹紧，以确保它们完美契合。
2. 2.The construction workers were using a capping machine to stiffen the metal beams.
   建筑工人正在使用一台夹紧机来加固金属梁。
3. 3.The carpenter used a special tool to capping the metal frame of the house.
   木匠使用一种特殊的工具来夹紧房屋的金属框架。