single-address code

例句：

1. 1. The company uses a single-address code to track customer interactions.
   该公司使用单一地址代码来追踪客户互动。
2. 2.The new system requires users to enter their single-address code at the login screen.
   新系统要求用户在登录屏幕输入他们的单一地址代码。
3. 3. The single-address code is used to identify the user's location on the network.
   单一地址代码用于识别用户在网络中的位置。