hollow rivet

例句：

1. 1. The hollow rivet holds the two pieces of metal together.
   空心铆钉将两块金属连接在一起。
2. 2.Hollow rivets are often used in construction to reinforce weak areas.
   空心铆钉常用于建筑中，以加固薄弱区域。
3. 3. The engineer carefully measured the dimensions of the hollow rivet before installation.
   工程师在安装前仔细测量了空心铆钉的尺寸。