electronic switching center

例句：

1. 1.The electronic switching center is responsible for managing the traffic flow in the city.
   电子开关中心负责管理城市中的交通流量。
2. 2.The electronic switching center has been upgraded to support higher data rates.
   电子开关中心已经升级以支持更高的数据传输速率。
3. 3. The electronic switching center is a critical component of the communication system.
   电子开关中心是通信系统的一个关键组成部分。