beam locking

例句：

1. 1. The beam locking mechanism ensures that the door can only be opened from the inside.
   光束锁定机制确保门只能从内部打开。
2. 2. In this project, we used beam interlocking to ensure structural integrity during construction.
   在这个项目中，我们使用了光束锁定来确保施工期间的结构完整性。
3. 3. The beam interlocking system was designed to prevent unauthorized access to the building's electrical systems.
   光束锁定系统被设计用来防止未经授权访问建筑物的电气系统。