safety coupling chain

例句：

1. 1. The safety coupling chainis crucial for the safe operation of themachinery.
   安全耦合链对于机械设备的安全运行至关重要。
2. 2.The engineer used a safety coupling chain toprevent any accidents during the installation process.
   工程师使用安全耦合链来防止安装过程中的任何事故。
3. 3. The safety coupling chain was designed toensure that the machine could only be operatedin a specific direction.
   安全耦合链的设计是为了确保机器只能沿着特定方向操作。