telex telephony

例句：

1. 1. Telex is atype of communication that uses electronic signals tosend messages.
   Telex是一种使用电子信号发送消息的通信方式。
2. 2. The company's main business is in the productionand sale of telex equipment.
   该公司的主要业务是生产和销售电信设备。
3. 3. Thetelx system was developed to improve communicationbetween different countries.
   telx系统是为了改善不同国家之间的通信而开发的。