angled loop

例句：

1. 1. The engineer designed the angled loop to connect two pieces of metal together.
   工程师设计了这种角度环来连接两块金属。
2. 2.The angled loop was used to secure the heavy box.
   这个角度环被用来固定那个沉重的箱子。
3. 3. The angled loop on the zipper is easy to pull apart.
   拉链上的这个角度环很容易拉开。