entrance-exit coded system

例句：

1. 1.The entrance and exit coded system is a crucial part of the security measures in our building.
   入口和出口编码系统是我们大楼安全措施中至关重要的一部分。
2. 2. In this system, each employee has a unique code that allows them to enter and exit the building without being detected by security cameras.
   在这个系统中，每个员工都有一个独特的代码，他们可以进入和离开大楼而不被安全摄像头发现。
3. 3. The coded system ensures that only authorized personnel can access restricted areas, providing an extra layer of security for the building.
   这个编码系统确保只有授权人员才能进入受限区域，为大楼提供了额外的安全层。