interlocking of points

例句：

1. 1. The bridge is designed to interlock with the road in case of an emergency.
   这座桥设计成可以与道路相互锁扣，以防紧急情况。
2. 2. The machine has an interlocking system that ensures safety during operation.
   这台机器有一个互锁系统，确保在操作过程中安全。
3. 3. The locks on the doors interlock, creating a secure environment.
   门锁上的锁扣相互锁扣，创造了一个安全的环境。