长途交换的英文

toll switching

trunk switching

ts toll switch

• 长途:    long-distance
• 交换:    exchange; swap; in ...
• 长途交换局:    primary exchange

例句与用法

1. Ixc inter - exchange carrier
   长途交换运营商
2. Inter - exchange carrier
   长途交换运营商
3. Toll switching trunk
   长途交换干线
4. The complicated and large amount of call irregular data will cause the overload of data processing , and will deteriorate the system performance
   本文针对长途交换系统输出之中季继障碍资料，提出一有效处理方法。
5. We installed standalone exchanges in the press center that were equipped with pstnisdn interfaces to provide such services as international switching , toll switching , local hubbing and local switching . the international switching capacity reached 30 , 000 circuit ports , and the toll switching capacity amounted to 126 , 000 circuit ports
   我们专门在新闻中心设立了独立的交换机，采用Ｐ Ｓ Ｔ Ｎ Ｉ Ｓ Ｄ Ｎ业务接口，分别提供国际交换、长途交换、本地汇接和本地交换等业务，其中国际交换容量达到３万路端，长途交换达到12