two-entry system of mining

例句：

1. 1.The two-way communication system allows for real-time information exchange between the two parties.
   双向通信系统允许双方进行实时的信息交换。
2. 2.The dual-entry system is designed to prevent unauthorized access to sensitive data.
   双重入口系统旨在防止未经授权访问敏感数据。
3. 3. In this two-way system, each party can send and receive messages without interruption.
   在这个双向系统中，每一方都可以发送和接收消息而不受干扰。